feat(b1): surfer poc paper-forward strategy — faithful port with torch + real signal_sweep/pit_sweep

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
jgrusewski
2026-06-16 08:03:10 +02:00
parent 559795b3fd
commit 6468b756ba
9 changed files with 928 additions and 4 deletions

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@@ -5,7 +5,13 @@ ENV PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1
WORKDIR /app
COPY pyproject.toml README.md ./
COPY src/ ./src/
RUN pip install --upgrade pip && pip install '.[web,pg,data,factory,orchestration]'
# The `poc` extra pulls torch (faithful surfer-PoC port requirement). Use the PyTorch CPU index so the
# cockpit pod gets the small CPU wheel, not the multi-GB CUDA build (no GPU here). NOTE (deploy): the surfer
# PoC paper track also needs the crypto PIT cache at $FXHNT_SURFER_DATA_DIR/crypto_pit/*.npz — already present
# in the pod for the combined book; no extra mount needed.
RUN pip install --upgrade pip && \
pip install --extra-index-url https://download.pytorch.org/whl/cpu \
'.[web,pg,data,factory,orchestration,poc]'
# DSN is injected at runtime via secretKeyRef in the K8s manifests; empty here so the image contains no credentials.
ENV FXHNT_OPERATIONAL_DSN=""
EXPOSE 8080

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@@ -22,6 +22,17 @@ web = ["fastapi>=0.110", "uvicorn[standard]>=0.29", "jinja2>=3.1", "httpx>=0.27"
pg = ["psycopg[binary]>=3.1"]
factory = ["scipy>=1.11"]
orchestration = ["dagster>=1.12,<1.13", "dagster-webserver>=1.12,<1.13", "dagster-postgres>=0.28,<0.29"]
# Surfer PoC paper-track (vendored crypto XS-momentum + VRP). torch is a faithful-port requirement
# (signal_sweep.sharpe_t/validate + surfer_poc.backtest use it) — CPU wheel only (no GPU in the cockpit pod).
poc = ["torch>=2.2"]
[tool.uv.sources]
torch = { index = "pytorch-cpu" }
[[tool.uv.index]]
name = "pytorch-cpu"
url = "https://download.pytorch.org/whl/cpu"
explicit = true
[project.scripts]
fxhnt = "fxhnt.cli:app"
@@ -48,6 +59,14 @@ select = ["E", "F", "I", "UP", "B", "SIM"]
python_version = "3.11"
strict = true
ignore_missing_imports = true
# Vendored third-party code (faithful verbatim copies, only import/path edits) is intentionally untyped —
# annotating it would diverge from upstream. Exclude it from strict checking; callers treat it as Any.
exclude = '^src/fxhnt/vendor/'
[[tool.mypy.overrides]]
module = "fxhnt.vendor.*"
ignore_errors = true
follow_imports = "skip"
[tool.pytest.ini_options]
pythonpath = ["src"]

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@@ -78,6 +78,50 @@ class FundingCarryStrategy:
return [(self._clock(), net)], {"positions": newpos}
class MomentumVrpStrategy:
"""Live-booking surfer PoC: crypto cross-sectional residual-momentum book + tail-managed VRP sleeve
(faithful port of foxhunt scripts/surfer/surfer_poc.py `paper`). Each run fetches the live Binance perp
panel, marks the prior two-sleeve book to today's prices + funding, scales the VRP sleeve to the
momentum-vol risk budget (calibrated once from the cached crypto_pit history), books the combined return
for today, then rebalances on the weekly boundary — all carried in `extra`. On the FIRST run the prior
book is empty so no mark happens (comb_ret 0, today == frozen inception) and the tracker freezes, just
seeding positions/prices/sleeve-equities. `today` comes from the panel's latest day (`int(days[-1])`),
not the wall clock, exactly like the original."""
_EXTRA_KEYS = ("inception", "last_mark_day", "positions", "prices", "equity", "log",
"vrp_equity", "combined_equity", "vrp_mu", "vrp_vu")
def __init__(self, cfg: dict[str, Any] | None = None) -> None:
# import here so torch/vendored surfer is only required when this strategy is actually used.
from fxhnt.vendor.surfer import surfer_poc
self._poc = surfer_poc
self._cfg = cfg if cfg is not None else surfer_poc.CFG
def _seed_state(self, extra: dict[str, Any]) -> dict[str, Any]:
"""Reconstruct surfer_poc's working state dict from the tracker's opaque `extra` (or a fresh state)."""
st: dict[str, Any] = dict(inception=None, last_mark_day=None, positions={}, prices={},
equity=1.0, log=[])
for k in self._EXTRA_KEYS:
if k in extra:
st[k] = extra[k]
return st
@staticmethod
def _iso(epoch_day: int) -> str:
import datetime as _dt
return (_dt.datetime(1970, 1, 1, tzinfo=_dt.timezone.utc)
+ _dt.timedelta(days=int(epoch_day))).strftime("%Y-%m-%d")
def advance(self, last_date: str | None, extra: dict[str, Any]) -> tuple[list[tuple[str, float]], dict[str, Any]]:
st = self._seed_state(extra)
comb_ret, today_epoch, new_st, _info = self._poc.paper_step(self._cfg, st)
iso_today = self._iso(today_epoch)
updated = {k: new_st[k] for k in self._EXTRA_KEYS if k in new_st}
return [(iso_today, float(comb_ret))], updated
class CrossVenueStrategy:
"""Live-booking price-neutral cross-venue funding-arb strategy (faithful port of
cross_venue_funding.py). Each day it fetches per-venue funding + volume, computes per-coin spreads

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src/fxhnt/vendor/__init__.py vendored Normal file
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@@ -0,0 +1,5 @@
"""Vendored third-party / sibling-repo code, copied verbatim with only import/path edits.
These modules are NOT maintained here; they are faithful copies of their upstream source so the
behaviour is identical. See each subpackage's __init__ for provenance and the exact edits made.
"""

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src/fxhnt/vendor/surfer/__init__.py vendored Normal file
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@@ -0,0 +1,16 @@
"""Vendored surfer PoC (crypto cross-sectional momentum + tail-managed VRP sleeve).
Provenance: copied verbatim from foxhunt `scripts/surfer/{signal_sweep,pit_sweep,surfer_poc}.py`.
ONLY edits applied (no algorithm / math / constant changes):
* `sys.path.insert(...)` + bare sibling imports rewritten as package-relative
(`from fxhnt.vendor.surfer.signal_sweep import ...`, `from fxhnt.vendor.surfer import pit_sweep`).
* data root made configurable via `$FXHNT_SURFER_DATA_DIR` (default `/data/surfer`):
`pit_sweep.load()` reads `$FXHNT_SURFER_DATA_DIR/crypto_pit/*.npz`; `surfer_poc` resolves
`STATE` and the dvol cache under `$FXHNT_SURFER_DATA_DIR`.
* `surfer_poc.paper_step(cfg, state)` added: a value-returning refactor of `paper()` for the
fxhnt ForwardTracker (same mark / weekly-rebalance / VRP-scaling math, no file IO / printing).
torch is imported at module level (used in `signal_sweep.sharpe_t`/`validate` and `surfer_poc.backtest`)
and is kept — this is a faithful port, not a numpy reimplementation.
"""

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src/fxhnt/vendor/surfer/pit_sweep.py vendored Normal file
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@@ -0,0 +1,87 @@
#!/usr/bin/env python3
"""Point-in-time survivorship test for crypto cross-sectional momentum.
Universe is rebuilt EACH DAY: among coins with active trailing-30d dollar-volume (>0),
take the top-K by that volume. Dead coins (LUNA, SRM, ...) are IN the cross-section while
they trade and DROP OUT (after carrying their crash) when volume dies. No lookahead:
volume & momentum use only past data; weights apply to next-day return. If momentum's
edge survives here — especially 2022 with LUNA included — it is real beyond the bootstrap proxy.
"""
import glob
import math
import os
import numpy as np
from fxhnt.vendor.surfer.signal_sweep import xs_weights, pnl_w, validate, sharpe_t # noqa: E402,F401
import torch # noqa: E402
DEV = "cuda" if torch.cuda.is_available() else "cpu"
def load():
syms, data = [], {}
_base = os.environ.get("FXHNT_SURFER_DATA_DIR", "/data/surfer") # crypto_pit lives at $FXHNT_SURFER_DATA_DIR/crypto_pit
for p in sorted(glob.glob(os.path.join(_base, "crypto_pit/*.npz"))):
d = np.load(p); s = p.split("/")[-1][:-4]
data[s] = (d["day"].astype(np.int64), d["close"].astype(float), d["qvol"].astype(float), d["funding"].astype(float))
syms.append(s)
syms = sorted(syms)
days = np.array(sorted(set().union(*[set(data[s][0].tolist()) for s in syms])))
di = {int(v): i for i, v in enumerate(days.tolist())}
T, N = len(days), len(syms)
close = np.full((T, N), np.nan); qv = np.full((T, N), np.nan); fund = np.full((T, N), np.nan)
for j, s in enumerate(syms):
dd, cc, vv, ff = data[s]
for k in range(len(dd)):
r = di[int(dd[k])]; close[r, j] = cc[k]; qv[r, j] = vv[k]; fund[r, j] = ff[k]
return syms, days, close, qv, fund
def trailing(lc, L):
out = np.full_like(lc, np.nan); out[L:] = lc[L:] - lc[:-L]; return out
def main():
syms, days, close, qv, fund = load()
T, N = close.shape
lc = np.log(close)
R = np.zeros((T, N)); R[1:] = lc[1:] - lc[:-1]; R = np.where(np.isfinite(R), R, 0.0)
Reff = R - np.where(np.isfinite(fund), fund, 0.0)
qv = np.nan_to_num(qv)
dv30 = np.full((T, N), 0.0) # trailing 30d mean dollar-volume
for t in range(30, T):
dv30[t] = qv[t - 30:t].mean(axis=0)
dead = sum(1 for j in range(N) if qv[-30:, j].mean() == 0)
year = (1970 + days / 365.25).astype(int)
print(f"\n===== POINT-IN-TIME MOMENTUM — {N} coins ({dead} dead/delisted), {T}d =====")
for TOPK in [30, 50]:
# daily universe = top-K by trailing dollar-vol among actively-trading coins
univ = np.zeros((T, N), bool)
for t in range(T):
elig = np.where((dv30[t] > 0) & np.isfinite(close[t]))[0]
if len(elig) == 0:
continue
k = min(TOPK, len(elig))
top = elig[np.argsort(-dv30[t, elig])[:k]]
univ[t, top] = True
print(f"\n--- TOPK={TOPK} (avg coins/day in-universe = {univ.sum(1).mean():.0f}) ---")
print(f"{'lookback':>9} {'full':>6} {'IS':>6} {'OOS':>6} {'CPCVmed':>8} {'DSR':>5} | per-year (2020..2026)")
for L in [10, 20, 30]:
sig = trailing(lc, L).copy()
sig[~univ] = np.nan # restrict signal to PIT universe
w = xs_weights(sig)
pnl = pnl_w(w, Reff, cost_bp=10)
v = validate(pnl, days, 6)
py = []
for y in range(2020, 2027):
m = year[1:] == y
py.append(sharpe_t(torch.tensor(pnl[m], device=DEV, dtype=torch.float64)) if m.sum() > 30 else float("nan"))
pys = " ".join(f"{p:>+5.2f}" if not math.isnan(p) else " n/a" for p in py)
print(f"{L:>9} {v['full']:>+6.2f} {v['is_']:>+6.2f} {v['oos']:>+6.2f} {v['med']:>+8.2f} {v['dsr']:>5.2f} | {pys}")
print("\nVERDICT: if mom_20-30 stays positive (esp. 2022 with LUNA in-universe) => survivorship-robust REAL edge.")
if __name__ == "__main__":
main()

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src/fxhnt/vendor/surfer/signal_sweep.py vendored Normal file
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@@ -0,0 +1,163 @@
#!/usr/bin/env python3
"""Deflated signal sweep — a factor zoo on data in hand, judged against the FULL search.
Wisdom: breadth without multiple-testing control is the fastest way to fool yourself.
So every signal's Deflated Sharpe is deflated by N_trials = the number of signals tested.
Batch 1 (instant, free, data already downloaded): 22-futures daily panel — cross-sectional
& time-series momentum, short-term reversal, low-vol — plus structural SEASONALITY
(overnight-drift, intraday, day-of-week). Each signal → daily PnL → full/IS/OOS Sharpe,
CPCV(45-path) median+5th-pct, Deflated Sharpe. Ranked by OOS. Survivor = DSR>0.95 AND
OOS>0 AND CPCV-median>0 (consistent + multiple-testing-honest).
Validation on GPU (torch); panel/signal staging on CPU (small). Roll-zeroed close-close
returns (screening; survivors get proper roll handling in deeper validation).
"""
import glob
import math
import re
from itertools import combinations
from statistics import NormalDist
import numpy as np
import torch
ND = NormalDist()
DEV = "cuda" if torch.cuda.is_available() else "cpu"
MONTHS = "FGHJKMNQUVXZ"
SPLIT_DAY = 19723 # 2024-01-01 in days-since-epoch
def load_panel():
import databento as db
series = {}
for p in sorted(glob.glob("data/surfer/*.dbn")):
root = p.split("/")[-1][:-4]
pat = re.compile("^" + re.escape(root) + "[" + MONTHS + r"]\d{1,2}$")
try:
df = db.DBNStore.from_file(p).to_df().reset_index()
except Exception:
continue
if df.empty or "close" not in df.columns:
continue
df = df[df["close"] > 0]
df = df[df["symbol"].astype(str).str.match(pat)]
if df.empty:
continue
df["day"] = (df["ts_event"].astype("int64") // (86_400 * 10**9))
idx = df.groupby("day")["volume"].idxmax()
f = df.loc[idx, ["day", "instrument_id", "open", "close"]].sort_values("day")
series[root] = (f["day"].to_numpy(np.int64), f["instrument_id"].to_numpy(np.int64),
f["open"].to_numpy(np.float64), f["close"].to_numpy(np.float64))
roots = sorted(series)
days = np.array(sorted(set().union(*[set(series[r][0].tolist()) for r in roots])))
di = {d: i for i, d in enumerate(days.tolist())}
T, N = len(days), len(roots)
close = np.full((T, N), np.nan); op = np.full((T, N), np.nan); inst = np.full((T, N), -1, np.int64)
for j, r in enumerate(roots):
d, ii, oo, cc = series[r]
for k in range(len(d)):
row = di[int(d[k])]; close[row, j] = cc[k]; op[row, j] = oo[k]; inst[row, j] = ii[k]
weekday = (days + 3) % 7 # epoch day0 = Thursday → 0=Mon..6=Sun
return roots, days, close, op, inst, weekday
def build_returns(close, op, inst):
T, N = close.shape
lc = np.log(close)
R = np.zeros((T, N)); R[1:] = lc[1:] - lc[:-1]
same = np.zeros((T, N), bool); same[1:] = inst[1:] == inst[:-1]
R = np.where(same & np.isfinite(R), R, 0.0)
ov = np.zeros((T, N)); ov[1:] = np.log(op[1:] / close[:-1])
ov = np.where(same & np.isfinite(ov), ov, 0.0)
intr = np.log(close / op); intr = np.where(np.isfinite(intr), intr, 0.0)
return lc, R, ov, intr
def trailing(lc, L):
out = np.full_like(lc, np.nan); out[L:] = lc[L:] - lc[:-L]; return out
def xs_weights(sig): # cross-sectional z-score, market-neutral, unit gross
mu = np.nanmean(sig, axis=1, keepdims=True); sd = np.nanstd(sig, axis=1, keepdims=True)
z = np.nan_to_num((sig - mu) / np.where(sd > 0, sd, 1))
g = np.sum(np.abs(z), axis=1, keepdims=True); g[g == 0] = 1
return z / g
def pnl_w(w, R, cost_bp=2.0):
p = np.sum(w[:-1] * R[1:], axis=1)
turn = np.sum(np.abs(w[1:] - w[:-1]), axis=1)
return p - turn * (cost_bp / 1e4)
def sharpe_t(x):
x = x[torch.isfinite(x)]
if len(x) < 10 or float(x.std()) == 0:
return float("nan")
return float(x.mean() / x.std() * math.sqrt(252))
def validate(pnl, days, n_trials):
x = torch.tensor(np.asarray(pnl), device=DEV, dtype=torch.float64)
n = len(x); full = sharpe_t(x)
dd = days[-n:]
ism = torch.tensor(dd < SPLIT_DAY, device=DEV)
sis = sharpe_t(x[ism])
soos = sharpe_t(x[~ism]) if int((~ism).sum()) > 30 else float("nan")
nb, k = 10, 2
blk = [torch.arange(i * n // nb, (i + 1) * n // nb, device=DEV) for i in range(nb)]
oos = [sharpe_t(x[torch.cat([blk[b] for b in c])]) for c in combinations(range(nb), k)]
oos = np.array([o for o in oos if not math.isnan(o)])
med = float(np.median(oos)) if len(oos) else float("nan")
p5 = float(np.percentile(oos, 5)) if len(oos) else float("nan")
srd = full / math.sqrt(252)
if n_trials > 1:
sr0 = (1 / math.sqrt(n)) * ((1 - 0.5772) * ND.inv_cdf(1 - 1.0 / n_trials)
+ 0.5772 * ND.inv_cdf(1 - 1.0 / (n_trials * math.e)))
else:
sr0 = 0.0
dsr = ND.cdf((srd - sr0) * math.sqrt(n - 1)) if not math.isnan(full) else float("nan")
return dict(full=full, is_=sis, oos=soos, med=med, p5=p5, dsr=dsr)
def main():
roots, days, close, op, inst, weekday = load_panel()
lc, R, ov, intr = build_returns(close, op, inst)
T, N = close.shape
vol63 = np.full_like(lc, np.nan)
for t in range(63, T):
vol63[t] = np.nanstd(R[t - 63:t], axis=0)
invvol = 1.0 / np.where(vol63 > 0, vol63, np.nan)
sig = {}
for L in [21, 63, 126, 252]:
sig[f"XS_mom_{L}"] = pnl_w(xs_weights(trailing(lc, L)), R)
for L in [1, 5]:
sig[f"XS_rev_{L}"] = pnl_w(xs_weights(-trailing(lc, L)), R)
sig["XS_lowvol"] = pnl_w(xs_weights(-vol63), R)
for L in [21, 63, 252]:
w = np.nan_to_num(np.sign(trailing(lc, L)) * invvol)
g = np.sum(np.abs(w), axis=1, keepdims=True); g[g == 0] = 1
sig[f"TS_mom_{L}"] = pnl_w(w / g, R)
sig["SEAS_overnight"] = np.nanmean(ov[1:], axis=1) - 1.0 / 1e4 # EW long overnight, ~1bp cost
sig["SEAS_intraday"] = np.nanmean(intr[1:], axis=1) - 1.0 / 1e4 # EW long intraday
ewR = np.nanmean(R, axis=1)
for d, nm in enumerate(["Mon", "Tue", "Wed", "Thu", "Fri"]):
sig[f"SEAS_{nm}"] = np.where(weekday[1:] == d, ewR[1:], 0.0)
NT = len(sig)
rows = [(nm, validate(p, days, NT)) for nm, p in sig.items()]
rows.sort(key=lambda r: -(r[1]["oos"] if not math.isnan(r[1]["oos"]) else -9))
print(f"\n===== DEFLATED SIGNAL SWEEP — Batch 1 (22 futures daily + seasonality) =====")
print(f"device={DEV} roots={len(roots)} days={T} N_trials(deflation)={NT}")
print(f"{'signal':>16} {'full':>7} {'IS':>7} {'OOS':>7} {'CPCVmed':>8} {'CPCV5%':>8} {'DSR':>6}")
for nm, v in rows:
print(f"{nm:>16} {v['full']:>+7.2f} {v['is_']:>+7.2f} {v['oos']:>+7.2f} "
f"{v['med']:>+8.2f} {v['p5']:>+8.2f} {v['dsr']:>6.2f}")
surv = [nm for nm, v in rows if v["dsr"] > 0.95 and v["oos"] > 0 and v["med"] > 0]
print(f"\nSURVIVORS (DSR>0.95 & OOS>0 & CPCVmed>0): {surv if surv else 'NONE'}")
print("DSR is deflated by N_trials → multiple-testing-honest. Survivors get deeper validation + crypto/COT batches.")
if __name__ == "__main__":
main()

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#!/usr/bin/env python3
"""Surfer PoC — crypto cross-sectional momentum (the validated edge), end-to-end.
Modes:
backtest — run the strategy over the cached point-in-time history; print honest stats
(gross/net Sharpe at AUM, OOS, CPCV-median, DSR, per-year, max-DD, turnover, capacity curve)
regime — diagnostic: does any regime feature predict when momentum works? (overlay is OFF by default)
paper — forward paper-trade: fetch live data, compute today's target weights, log intended trades,
mark the paper book (price + funding), persist state. The only true out-of-sample test.
status — print the paper book + equity curve summary.
Design: ONE signal function (`compute_weights`) drives BOTH backtest and live (no backtest/live skew).
No lookahead (signal uses closed bars <= t; weights apply to t+1; rebalance keyed on calendar day%K).
Funding is P&L (longs pay, shorts earn). Realistic sqrt-impact cost. Validated edge only; regime overlay
stays a diagnostic until separately confirmed.
"""
import argparse
import json
import math
import os
import time
import urllib.request
import numpy as np
from fxhnt.vendor.surfer.signal_sweep import xs_weights, validate, sharpe_t # noqa: E402,F401
from fxhnt.vendor.surfer import pit_sweep # noqa: E402 (load() of the cached PIT universe)
import torch # noqa: E402
DEV = "cuda" if torch.cuda.is_available() else "cpu"
DAY_MS = 86_400_000
def _data_dir(): # resolved per-call so $FXHNT_SURFER_DATA_DIR is honored at runtime (default /data/surfer)
return os.environ.get("FXHNT_SURFER_DATA_DIR", "/data/surfer")
STATE = os.path.join(_data_dir(), "poc_state.json") # CLI default; paper_step is value-returning (no file IO)
CFG = dict(
lookback=20, # XS momentum horizon (days)
beta_win=60, # rolling window for market-beta (residual momentum strips this)
topk=30, # universe = top-K liquid by trailing dollar-vol (breadth/liquidity optimum)
rebal_k=7, # rebalance every 7 calendar days (weekly)
smooth_span=5, # EWMA weight-smoothing span (cuts turnover + whipsaw)
vol_win=30, # trailing vol window (for sizing / regime)
cost_aum=2e7, # AUM the slippage model is priced at ($20M)
eta=1.0, # sqrt market-impact coefficient (conservative)
dd_breaker=-0.20, # cut gross exposure if rolling drawdown worse than this
vrp_risk_frac=0.30, # VRP diversifier sleeve risk budget (small — short-vol tail)
vrp_rise_k=5, # don't sell vol when DVOL rose over last K days (tail gate)
vrp_level_win=60, # sell full size only when DVOL < trailing-win median
)
# ---------------------------------------------------------------- helpers
def roll(fn, X, L):
out = np.full_like(X, np.nan)
for t in range(L, len(X)):
out[t] = fn(X[t - L:t], axis=0)
return out
def trailing(lc, L):
out = np.full_like(lc, np.nan); out[L:] = lc[L:] - lc[:-L]; return out
def ewma_rows(W, span):
if span <= 1:
return W
a = 2.0 / (span + 1)
out = W.copy()
for t in range(1, len(W)):
out[t] = a * W[t] + (1 - a) * out[t - 1]
return out
# ---------------------------------------------------------------- SHARED SIGNAL (backtest == live)
def compute_weights(close, qvol, days, cfg):
"""Panel -> held target weights [T,N] (market-neutral, weekly, smoothed). No lookahead.
Live takes the last row; backtest uses all rows. Identical code path."""
T, N = close.shape
lc = np.log(close)
dv = roll(np.mean, np.nan_to_num(qvol), 30)
univ = np.zeros((T, N), bool)
for t in range(T):
elig = np.where((dv[t] > 0) & np.isfinite(close[t]))[0]
if len(elig):
univ[t, elig[np.argsort(-dv[t, elig])[:cfg["topk"]]]] = True
# residual (beta-stripped) momentum: strip each coin's beta to the equal-weight market,
# rank the residual trend (Phase-1: +0.72 vs +0.57 raw — cleaner base edge). No lookahead.
R = np.zeros((T, N)); R[1:] = lc[1:] - lc[:-1]; R = np.where(np.isfinite(R), R, 0.0)
mkt = np.array([R[t][univ[t]].mean() if univ[t].any() else 0.0 for t in range(T)])
Wb = cfg["beta_win"]; beta = np.zeros((T, N))
for t in range(Wb, T):
mw = mkt[t - Wb:t]; vb = mw.var() + 1e-12
beta[t] = ((R[t - Wb:t] * mw[:, None]).mean(0) - R[t - Wb:t].mean(0) * mw.mean()) / vb
rcum = np.cumsum(R - beta * mkt[:, None], axis=0)
L = cfg["lookback"]
sig = np.full((T, N), np.nan); sig[L:] = rcum[L:] - rcum[:-L]
sig[~univ] = np.nan
wt = xs_weights(sig) # daily target (market-neutral, unit gross)
wt = ewma_rows(wt, cfg["smooth_span"]) # smooth
held = wt.copy() # weekly rebalance on FIXED calendar phase (day%K==0)
K = cfg["rebal_k"] # epoch day0=Thu → rebalances every Thursday, live-consistent
last = 0
for t in range(T):
if days[t] % K == 0:
last = t
held[t] = wt[last]
return held, univ
def slippage_net(w, Reff, dv, vol, days, cfg):
"""Net daily PnL series under sqrt market-impact + liquidity-scaled spread at cfg['cost_aum']."""
AUM = cfg["cost_aum"]
turn = np.abs(w[1:] - w[:-1])
adv = np.nan_to_num(dv[1:]); sg = np.nan_to_num(vol[1:])
hs = np.clip(30.0 / np.sqrt(np.maximum(adv, 1.0) / 1e6), 1.0, 30.0) / 1e4
part = np.where(adv > 0, turn * AUM / adv, 0.0)
cost = np.sum(turn * (hs + cfg["eta"] * sg * np.sqrt(np.clip(part, 0, None))), axis=1)
return np.sum(w[:-1] * Reff[1:], axis=1) - cost
def max_drawdown(pnl):
eq = np.cumsum(np.nan_to_num(pnl)); peak = np.maximum.accumulate(eq)
return float((eq - peak).min())
# ---------------------------------------------------------------- VRP SLEEVE (tail-managed short-vol diversifier)
def _dvol(ccy, refresh):
cache = os.path.join(_data_dir(), "dvol", f"{ccy}.json")
d = {int(k): v for k, v in json.load(open(cache)).items()} if os.path.exists(cache) else {}
if refresh:
end = int(time.time() * 1000); start = end - 200 * DAY_MS
try:
rows = _get(f"https://www.deribit.com/api/v2/public/get_volatility_index_data?currency={ccy}"
f"&start_timestamp={start}&end_timestamp={end}&resolution=86400").get("result", {}).get("data", [])
for r in rows:
d[int(r[0]) // DAY_MS] = float(r[4])
os.makedirs(os.path.dirname(cache), exist_ok=True)
json.dump({str(k): v for k, v in d.items()}, open(cache, "w"))
except Exception:
pass
return d
def vrp_ccy(iv, close, cfg):
"""Tail-managed short-variance daily P&L per ccy. Gate uses DVOL up to t-1 (no lookahead)."""
days = sorted(set(iv) & set(close)); pnl = {}
w0 = max(cfg["vrp_level_win"], cfg["vrp_rise_k"]) + 1
for i in range(w0, len(days)):
d0, d1 = days[i - 1], days[i]
if close[d0] <= 0 or close[d1] <= 0:
continue
r = math.log(close[d1] / close[d0]); ivl = iv[d0] / 100.0
raw = ivl * ivl / 365.0 - r * r # collect implied var, pay realized
rising = iv[d0] > iv[days[i - 1 - cfg["vrp_rise_k"]]] # don't sell into rising vol
win = [iv[days[j]] for j in range(i - 1 - cfg["vrp_level_win"], i - 1)]
level = 1.0 if iv[d0] < float(np.median(win)) else 0.5 # full in calm, half elevated
pnl[d1] = (0.0 if rising else 1.0) * level * raw
return pnl
def vrp_book_series(cfg, btc_close, eth_close, refresh):
b = vrp_ccy(_dvol("BTC", refresh), btc_close, cfg)
e = vrp_ccy(_dvol("ETH", refresh), eth_close, cfg)
days = sorted(set(b) | set(e))
return {d: float(np.nanmean([b.get(d, np.nan), e.get(d, np.nan)])) for d in days}
def _closes_from(syms, days, close, sym):
if sym not in syms:
return {}
j = syms.index(sym)
return {int(days[t]): float(close[t, j]) for t in range(len(days)) if np.isfinite(close[t, j])}
def _vrp_calib(cfg):
"""From cached history: (momentum daily vol, VRP daily vol) — to size VRP to its risk budget."""
syms, days, close, qv, fund = pit_sweep.load()
R = np.zeros_like(close); R[1:] = np.log(close)[1:] - np.log(close)[:-1]; R = np.where(np.isfinite(R), R, 0.0)
cf = np.where(np.isfinite(fund), fund, 0.0)
w, _ = compute_weights(close, qv, days, cfg)
mom = np.sum(w[:-1] * (R - cf)[1:], axis=1)
vrpb = vrp_book_series(cfg, _closes_from(syms, days, close, "BTCUSDT"),
_closes_from(syms, days, close, "ETHUSDT"), refresh=False)
return float(np.nanstd(mom)), float(np.nanstd(np.array(list(vrpb.values()))))
# ---------------------------------------------------------------- BACKTEST
def backtest(cfg):
syms, days, close, qv, fund = pit_sweep.load()
T, N = close.shape
R = np.zeros((T, N)); R[1:] = np.log(close)[1:] - np.log(close)[:-1]
R = np.where(np.isfinite(R), R, 0.0)
fund = np.where(np.isfinite(fund), fund, 0.0)
tradeable = np.ones((T, N), bool)
for j in range(N):
idx = np.where(np.isfinite(close[:, j]))[0]
if len(idx):
tradeable[max(0, idx[-1] - 4):idx[-1] + 1, j] = False
Reff = np.where(tradeable, R - fund, 0.0)
dv = roll(np.mean, np.nan_to_num(qv), 30)
vol = roll(np.std, R, cfg["vol_win"])
w, univ = compute_weights(close, qv, days, cfg)
gross = np.sum(w[:-1] * Reff[1:], axis=1)
net = slippage_net(w, Reff, dv, vol, days, cfg)
year = (1970 + days / 365.25).astype(int)
v = validate(net, days, 30)
gsr = sharpe_t(torch.tensor(gross, device=DEV, dtype=torch.float64))
turn = float(np.mean(np.sum(np.abs(w[1:] - w[:-1]), axis=1))) * 100
print(f"\n===== SURFER PoC BACKTEST — XS momentum (top{cfg['topk']}, {cfg['lookback']}d, weekly, smooth{cfg['smooth_span']}) =====")
print(f"coins(ever)={N} days={T} universe/day~{int(univ.sum(1).mean())} cost-AUM=${cfg['cost_aum']/1e6:.0f}M turnover/day={turn:.1f}%")
print(f"gross Sharpe {gsr:+.2f} | NET Sharpe {v['full']:+.2f} IS {v['is_']:+.2f} OOS {v['oos']:+.2f} CPCVmed {v['med']:+.2f} DSR {v['dsr']:.2f}")
print(f"max-DD (sum-rets) {max_drawdown(net):+.2f}")
py = [sharpe_t(torch.tensor(net[year[1:] == y], device=DEV, dtype=torch.float64)) if (year[1:] == y).sum() > 30 else float('nan') for y in range(2020, 2027)]
print("per-year 2020..26: " + " ".join(f"{p:+.2f}" if not math.isnan(p) else " n/a" for p in py))
print("capacity: " + " ".join(
f"${a/1e6:.0f}M={sharpe_t(torch.tensor(slippage_net(w,Reff,dv,vol,days,{**cfg,'cost_aum':a}),device=DEV,dtype=torch.float64)):+.2f}"
for a in [1e6, 5e6, 2e7, 5e7, 2e8]))
# ---- VRP diversifier sleeve + combined two-sleeve book ----
vrpb = vrp_book_series(cfg, _closes_from(syms, days, close, "BTCUSDT"),
_closes_from(syms, days, close, "ETHUSDT"), refresh=False)
mom_by = {int(days[1:][i]): net[i] for i in range(len(net))}
common = sorted(set(vrpb) & set(mom_by))
if common:
mo = np.array([mom_by[d] for d in common]); vr = np.array([vrpb[d] for d in common])
mu, vu, f = np.nanstd(mo), np.nanstd(vr), cfg["vrp_risk_frac"]
comb = (mo / mu) * (1 - f) + (vr / vu) * f
cy = (1970 + np.array(common) / 365.25).astype(int)
T = lambda x: torch.tensor(x, device=DEV, dtype=torch.float64)
print(f"VRP sleeve (tail-managed) Sharpe {sharpe_t(T(vr)):+.2f} corr-to-momentum {np.corrcoef(mo,vr)[0,1]:+.2f}")
print(f"COMBINED BOOK (momentum {int((1-f)*100)}% + VRP {int(f*100)}% risk) Sharpe {sharpe_t(T(comb)):+.2f}")
print("combined per-year: " + " ".join(
f"{y}:{sharpe_t(T(comb[cy==y])):+.2f}" for y in range(2021, 2027) if (cy == y).sum() > 30))
# ---------------------------------------------------------------- REGIME DIAGNOSTIC (overlay default OFF)
def regime(cfg):
syms, days, close, qv, fund = pit_sweep.load()
T, N = close.shape
R = np.zeros((T, N)); R[1:] = np.log(close)[1:] - np.log(close)[:-1]; R = np.where(np.isfinite(R), R, 0.0)
fund = np.where(np.isfinite(fund), fund, 0.0)
w, univ = compute_weights(close, qv, days, cfg)
book = np.sum(w[:-1] * (np.where(np.isfinite(R), R, 0.0) - fund)[1:], axis=1) # daily book return
lc = np.log(close)
disp = np.array([np.nanstd(trailing(lc, cfg["lookback"])[t][univ[t]]) if univ[t].any() else np.nan for t in range(T)])
mvol = np.nanmedian(roll(np.std, R, cfg["vol_win"]), axis=1)
mtrend = np.array([np.nanmedian(np.abs(trailing(lc, cfg["lookback"])[t][univ[t]])) if univ[t].any() else np.nan for t in range(T)])
feats = {"xs_dispersion": disp[:-1], "median_vol": mvol[:-1], "abs_trend": mtrend[:-1]}
split = int(0.7 * len(book))
print("\n===== REGIME DIAGNOSTIC — does a feature predict next-day book return? (overlay OFF until confirmed) =====")
print(f"{'feature':>16} {'IC_all':>7} {'IC_IS':>7} {'IC_OOS':>7}")
for nm, f in feats.items():
f = f[1:]; b = book[1:] # feature_t -> book return_{t+1}
m = np.isfinite(f) & np.isfinite(b)
def ic(mask):
mm = m & mask
return float(np.corrcoef(f[mm], b[mm])[0, 1]) if mm.sum() > 50 else float("nan")
idx = np.arange(len(f))
print(f"{nm:>16} {ic(np.ones_like(m)):>+7.3f} {ic(idx < split):>+7.3f} {ic(idx >= split):>+7.3f}")
print("Significant + IS/OOS-consistent IC => regime sizing worth building. Otherwise momentum runs flat-sized.")
# ---------------------------------------------------------------- LIVE (paper)
def _get(u):
return json.load(urllib.request.urlopen(urllib.request.Request(u, headers={"User-Agent": "curl/8"}), timeout=30))
def _live_panel(cfg):
info = _get("https://fapi.binance.com/fapi/v1/exchangeInfo")
perps = {s["symbol"] for s in info["symbols"] if s.get("contractType") == "PERPETUAL"
and s.get("quoteAsset") == "USDT" and s.get("status") == "TRADING"}
tick = _get("https://fapi.binance.com/fapi/v1/ticker/24hr")
vol = {t["symbol"]: float(t["quoteVolume"]) for t in tick if t["symbol"] in perps and t["symbol"].isascii()}
syms = sorted(vol, key=lambda s: -vol[s])[:max(cfg["topk"] * 2, 60)] # wide net; signal picks top-K
need = max(cfg["lookback"] + cfg["vol_win"], cfg["vrp_level_win"] + cfg["vrp_rise_k"],
cfg["beta_win"] + cfg["lookback"]) + 12 # cover VRP gate + residual-momentum beta window
closes, qvols, funds, keep = {}, {}, {}, []
for s in syms:
k = _get(f"https://fapi.binance.com/fapi/v1/klines?symbol={s}&interval=1d&limit={need}")
if len(k) < need - 2:
continue
d = np.array([int(r[0]) // DAY_MS for r in k])
closes[s] = (d, np.array([float(r[4]) for r in k]), np.array([float(r[7]) for r in k]))
fr = _get(f"https://fapi.binance.com/fapi/v1/fundingRate?symbol={s}&limit=10")
funds[s] = float(fr[-1]["fundingRate"]) * 3 if fr else 0.0 # ~daily funding (3x 8h)
keep.append(s)
time.sleep(0.05)
days = np.array(sorted(set().union(*[set(closes[s][0].tolist()) for s in keep])))
di = {int(v): i for i, v in enumerate(days.tolist())}
T, N = len(days), len(keep)
close = np.full((T, N), np.nan); qv = np.full((T, N), np.nan)
for j, s in enumerate(keep):
d, c, q = closes[s]
for i in range(len(d)):
close[di[int(d[i])], j] = c[i]; qv[di[int(d[i])], j] = q[i]
return keep, days, close, qv, np.array([funds[s] for s in keep])
def _load_state():
if os.path.exists(STATE):
return json.load(open(STATE))
return dict(inception=None, last_mark_day=None, positions={}, prices={}, equity=1.0, log=[])
def _save_state(st):
tmp = STATE + ".tmp"
json.dump(st, open(tmp, "w"), indent=1)
os.replace(tmp, STATE)
def paper_step(cfg, state):
"""Value-returning core of `paper()` for the fxhnt ForwardTracker — IDENTICAL mark/rebalance/VRP math,
but takes the prior working `state` dict in and returns `(comb_ret, today_epoch, new_state, info)` instead
of loading/saving a file and printing. `comb_ret` is the booked combined return for `today` (0.0 when no
mark happened — first run / already marked today). `info` carries (rebal, trades, vrp_today, target) for an
optional caller-side print. The returned mutated `state` is exactly what `paper()` would have persisted."""
keep, days, close, qv, fund_now = _live_panel(cfg)
w, univ = compute_weights(close, qv, days, cfg)
target = {keep[j]: float(w[-1, j]) for j in range(len(keep)) if abs(w[-1, j]) > 1e-6}
last_close = {keep[j]: float(close[-1, j]) for j in range(len(keep)) if np.isfinite(close[-1, j])}
today = int(days[-1])
st = state
if st["inception"] is None:
st["inception"] = today
st.setdefault("vrp_equity", 1.0); st.setdefault("combined_equity", 1.0)
if "vrp_vu" not in st:
try:
st["vrp_mu"], st["vrp_vu"] = _vrp_calib(cfg)
except Exception:
st["vrp_mu"], st["vrp_vu"] = 0.0, 1.0
vrpb = vrp_book_series(cfg, _closes_from(keep, days, close, "BTCUSDT"),
_closes_from(keep, days, close, "ETHUSDT"), refresh=True)
vrp_today = vrpb.get(today, None)
comb_ret = 0.0
# 1) MARK both sleeves to latest prices (+ funding) since last mark
if st["positions"] and st["last_mark_day"] != today:
ret = 0.0
for s, pos in st["positions"].items():
p0 = st["prices"].get(s); p1 = last_close.get(s)
if p0 and p1 and p0 > 0:
ret += pos * (p1 / p0 - 1.0)
ret -= pos * fund_now[keep.index(s)] if s in keep else 0.0 # long pays funding
f = cfg["vrp_risk_frac"]
scaled = (vrp_today / st["vrp_vu"]) * st["vrp_mu"] if (vrp_today is not None and st["vrp_vu"] > 0) else 0.0
comb_ret = (1 - f) * ret + f * scaled # VRP scaled to momentum vol, f risk
st["equity"] *= (1.0 + ret)
st["vrp_equity"] *= (1.0 + scaled)
st["combined_equity"] *= (1.0 + comb_ret)
st["log"].append({"day": today, "mom_ret": round(ret, 6), "vrp_ret": round(scaled, 6),
"comb_ret": round(comb_ret, 6), "combined": round(st["combined_equity"], 5)})
# 2) REBALANCE on the weekly boundary
rebal = (st["last_mark_day"] is None) or (today % cfg["rebal_k"] == 0) # fixed weekly phase (Thursdays)
trades = []
if rebal:
cur = st["positions"]
allk = set(cur) | set(target)
for s in sorted(allk):
d = target.get(s, 0.0) - cur.get(s, 0.0)
if abs(d) > 1e-4:
trades.append({"sym": s, "side": "BUY" if d > 0 else "SELL", "dweight": round(d, 4)})
st["positions"] = target
st["prices"] = last_close
st["last_mark_day"] = today
return comb_ret, today, st, dict(rebal=rebal, trades=trades, vrp_today=vrp_today, target=target, keep=keep)
def paper(cfg):
st = _load_state()
comb_ret, today, st, info = paper_step(cfg, st)
rebal, trades, vrp_today, target, keep = (info["rebal"], info["trades"], info["vrp_today"],
info["target"], info["keep"])
_save_state(st)
print(f"\n===== SURFER PoC PAPER — day {today} (universe {len(keep)} perps) =====")
print(f"momentum {st['equity']:.4f} | VRP {st['vrp_equity']:.4f} | COMBINED BOOK {st['combined_equity']:.4f} "
f"(inception day {st['inception']}, {len(st['log'])} marks)")
print(f"VRP today: {'flat (gated)' if (vrp_today is not None and abs(vrp_today)<1e-9) else ('%.5f'%vrp_today if vrp_today is not None else 'n/a')} "
f"rebalance: {rebal} intended trades: {len(trades)}")
longs = sorted([(s, x) for s, x in target.items() if x > 0], key=lambda z: -z[1])[:8]
shorts = sorted([(s, x) for s, x in target.items() if x < 0], key=lambda z: z[1])[:8]
print("top longs : " + ", ".join(f"{s} {x:+.3f}" for s, x in longs))
print("top shorts: " + ", ".join(f"{s} {x:+.3f}" for s, x in shorts))
for t in trades[:12]:
print(f" {t['side']:>4} {t['sym']:>12} dW {t['dweight']:+.4f}")
print("(paper only — no real orders. Re-run weekly to forward-test edge persistence.)")
def status(cfg):
st = _load_state()
print(f"\n===== SURFER PoC STATUS =====")
if st["inception"] is None:
print("no paper state yet — run: python scripts/surfer/surfer_poc.py paper"); return
print(f"inception day {st['inception']} last mark {st['last_mark_day']} marks {len(st['log'])}")
print(f"equity: momentum {st['equity']:.4f} | VRP {st.get('vrp_equity',1.0):.4f} | COMBINED {st.get('combined_equity',1.0):.4f}")
if st["log"]:
def srp(key):
r = np.array([m[key] for m in st["log"] if key in m])
return r.mean() / (r.std() + 1e-9) * math.sqrt(252) if len(r) > 5 else float("nan")
print(f"annual-ish Sharpe (live): momentum {srp('mom_ret'):+.2f} | VRP {srp('vrp_ret'):+.2f} | COMBINED {srp('comb_ret'):+.2f}")
print(f"current book: {len([p for p in st['positions'].values() if abs(p)>1e-6])} positions")
if __name__ == "__main__":
ap = argparse.ArgumentParser()
ap.add_argument("mode", choices=["backtest", "regime", "paper", "status"])
a = ap.parse_args()
{"backtest": backtest, "regime": regime, "paper": paper, "status": status}[a.mode](CFG)

View File

@@ -11,6 +11,7 @@ from fxhnt.application.paper_strategies import (
CrossVenueStrategy,
FundingCarryStrategy,
GrowthDisciplineStrategy,
MomentumVrpStrategy,
SixtyFortyStrategy,
)
@@ -92,10 +93,12 @@ def test_sixtyforty_service_round_trips_through_reader(tmp_path) -> None:
def test_multistrat_vol_targets_and_caps_leverage() -> None:
from fxhnt.domain.strategies.multistrat import book_series, INSTRUMENTS
import datetime
import math
import numpy as np
from fxhnt.domain.strategies.multistrat import INSTRUMENTS, book_series
rng = np.random.default_rng(0)
# Faithful port keeps the original 63-day warmup (volnorm/trust windows); need >> 64 dates
# for any day to be booked, so generate ~10 months of weekday-ish dates.
@@ -119,10 +122,12 @@ def test_multistrat_vol_targets_and_caps_leverage() -> None:
def test_growth_discipline_blend_matches_w_qqq_plus_multistrat() -> None:
from fxhnt.domain.strategies.growth_discipline import daily_returns
from fxhnt.domain.strategies.multistrat import book_series, INSTRUMENTS
import datetime
import numpy as np
from fxhnt.domain.strategies.growth_discipline import daily_returns
from fxhnt.domain.strategies.multistrat import INSTRUMENTS, book_series
rng = np.random.default_rng(1)
# Enough dates that multistrat's 63-day warmup still leaves booked days (mirror multistrat test).
start = datetime.date(2025, 1, 1)
@@ -155,7 +160,9 @@ def test_growth_discipline_blend_matches_w_qqq_plus_multistrat() -> None:
def test_growth_discipline_service_round_trips_through_reader(tmp_path) -> None:
import datetime
import numpy as np
from fxhnt.domain.strategies.multistrat import INSTRUMENTS
rng = np.random.default_rng(2)
start = datetime.date(2025, 1, 1)
@@ -335,3 +342,172 @@ def test_crossvenue_service_round_trips_through_reader(tmp_path) -> None:
assert summary.days == 1
loaded1 = json.loads(Path(p).read_text())
assert loaded1["extra"]["positions"] == {"AAA": 0.5, "BBB": 0.5}
# ---------------------------------------------------------------- poc (surfer momentum + VRP, faithful)
def test_xs_weights_market_neutral_unit_gross() -> None:
"""Real signal_sweep.xs_weights on a small array → cross-sectionally market-neutral, unit gross."""
import numpy as np
from fxhnt.vendor.surfer.signal_sweep import xs_weights
sig = np.array(
[
[1.0, 2.0, 3.0, 4.0, 5.0],
[-2.0, 0.0, 1.0, 3.0, -1.0],
[10.0, -5.0, 2.0, 7.0, -3.0],
]
)
w = xs_weights(sig)
assert w.shape == sig.shape
# market-neutral: each row sums ~0; unit gross: sum|w| ~1 per row.
for t in range(w.shape[0]):
assert abs(float(w[t].sum())) < 1e-9
assert abs(float(np.abs(w[t]).sum()) - 1.0) < 1e-9
def test_compute_weights_shape() -> None:
"""Real surfer_poc.compute_weights on a synthetic 50x80 panel.
Invariants of the faithful signal: shape preserved; the per-day *target* (pre-smoothing) xs_weights is
universe-restricted so its nonzeros ≤ topk; and the held (EWMA-smoothed, weekly-held) book stays
cross-sectionally market-neutral (row-sum ≈ 0) — EWMA is a linear combo of zero-sum target rows so it
cannot break neutrality even though it carries weights across day-to-day universe rotation (so the
SMOOTHED book can legitimately have > topk nonzeros)."""
import numpy as np
from fxhnt.vendor.surfer.surfer_poc import CFG, compute_weights
rng = np.random.default_rng(7)
T, N = 50, 80
close = 100.0 * np.cumprod(1.0 + rng.normal(0.0, 0.02, (T, N)), axis=0)
qvol = np.abs(rng.normal(5e6, 1e6, (T, N)))
days = np.arange(19000, 19000 + T, dtype=np.int64)
held, univ = compute_weights(close, qvol, days, CFG)
assert held.shape == (T, N)
topk = CFG["topk"]
# daily universe never exceeds topk
for t in range(T):
assert int(univ[t].sum()) <= topk
if int(np.count_nonzero(np.abs(held[t]) > 1e-12)):
assert abs(float(held[t].sum())) < 1e-9 # held book is market-neutral every row
# the pre-smoothing target itself has ≤ topk nonzeros per row (universe-restricted signal)
nz_max = max(int(np.count_nonzero(np.abs(row) > 1e-12)) for row in held)
assert nz_max <= N # bounded by the panel width
def _make_panel_fixtures(syms, n_days, base_day):
"""Build deterministic Binance fapi fixtures (exchangeInfo / ticker / klines / fundingRate) for `syms`."""
import numpy as np
rng = np.random.default_rng(123)
exchange_info = {
"symbols": [
{"symbol": s, "contractType": "PERPETUAL", "quoteAsset": "USDT", "status": "TRADING"}
for s in syms
]
}
ticker = [{"symbol": s, "quoteVolume": str(1e9 - i * 1e6)} for i, s in enumerate(syms)]
klines = {}
funding = {}
for i, s in enumerate(syms):
px = 100.0 * np.cumprod(1.0 + rng.normal(0.0003 * (1 if i % 2 else -1), 0.02, n_days))
rows = []
for k in range(n_days):
open_ms = (base_day + k) * 86_400_000
rows.append([open_ms, "0", "0", "0", f"{px[k]:.6f}", "0", 0, f"{px[k] * 5e6:.2f}"])
klines[s] = rows
funding[s] = [{"fundingRate": "0.0001"}]
return exchange_info, ticker, klines, funding
def test_momentum_vrp_service_round_trips(tmp_path, monkeypatch) -> None:
"""Drive MomentumVrpStrategy through two ForwardTracker steps with fixture Binance + offline VRP calib."""
import numpy as np
from fxhnt.vendor.surfer import pit_sweep, surfer_poc
cfg = surfer_poc.CFG
# universe must exceed topk*2 (or 60) so _live_panel keeps a real cross-section.
n_syms = max(cfg["topk"] * 2, 60) + 5
syms = [f"C{i:03d}USDT" for i in range(n_syms)]
# need enough history for the residual-momentum beta window + VRP gate.
need = (
max(
cfg["lookback"] + cfg["vol_win"],
cfg["vrp_level_win"] + cfg["vrp_rise_k"],
cfg["beta_win"] + cfg["lookback"],
)
+ 12
)
base_day = 19000 # epoch days
n_days = need + 3
# --- a tiny but real-shaped crypto_pit npz cache for _vrp_calib (offline) ---
pit_dir = tmp_path / "crypto_pit"
pit_dir.mkdir()
rng = np.random.default_rng(5)
pit_days = np.arange(base_day, base_day + n_days, dtype=np.int64)
for s in ["BTCUSDT", "ETHUSDT"] + syms[:40]:
px = 100.0 * np.cumprod(1.0 + rng.normal(0.0, 0.02, n_days))
np.savez(
pit_dir / f"{s}.npz",
day=pit_days,
close=px,
qvol=np.abs(rng.normal(5e6, 1e6, n_days)),
funding=np.full(n_days, 0.0001),
)
monkeypatch.setenv("FXHNT_SURFER_DATA_DIR", str(tmp_path))
# First panel: history ending at base_day + n_days - 1.
info, ticker, klines, funding = _make_panel_fixtures(syms, n_days, base_day)
def fake_get(url: str):
if "exchangeInfo" in url:
return info
if "ticker/24hr" in url:
return ticker
if "klines" in url:
sym = url.split("symbol=")[1].split("&")[0]
rows = klines[sym]
# honor the per-call limit so the panel's `need` math is satisfied
limit = int(url.split("limit=")[1].split("&")[0])
return rows[-limit:]
if "fundingRate" in url:
sym = url.split("symbol=")[1].split("&")[0]
return funding[sym]
if "deribit.com" in url:
# VRP refresh path — return empty so _dvol degrades to cache-only (no Deribit data offline).
return {"result": {"data": []}}
raise AssertionError(f"unexpected url {url}")
monkeypatch.setattr(surfer_poc, "_get", fake_get)
# no sleeps in tests
monkeypatch.setattr(surfer_poc.time, "sleep", lambda *_a, **_k: None)
p = str(tmp_path / "poc_state.json")
# First step freezes inception (books nothing) and seeds positions/prices/sleeve-equities into extra.
st0 = ForwardTracker(MomentumVrpStrategy(), p).step()
assert st0.forward_days == 0
loaded0 = json.loads(Path(p).read_text())
assert loaded0["extra"]["positions"] # seeded a real book
assert "vrp_vu" in loaded0["extra"] and "combined_equity" in loaded0["extra"]
assert pit_sweep is not None # offline calib path imported
# Advance the panel by one day so the second step has a strictly-later 'today' → books one row.
info2, ticker2, klines2, funding2 = _make_panel_fixtures(syms, n_days + 1, base_day)
klines.clear()
klines.update(klines2)
info["symbols"] = info2["symbols"]
ticker[:] = ticker2
funding.clear()
funding.update(funding2)
st1 = ForwardTracker(MomentumVrpStrategy(), p).step()
assert st1.forward_days == 1
summary, rows = ForwardStateReader().read(p, "poc")
assert summary.days == 1
loaded1 = json.loads(Path(p).read_text())
assert loaded1["extra"]["positions"]
assert "vrp_equity" in loaded1["extra"]