diff --git a/crates/ml/src/cuda_pipeline/backtest_plan_kernel.cu b/crates/ml/src/cuda_pipeline/backtest_plan_kernel.cu
index d29bfdb78..062b4c49b 100644
--- a/crates/ml/src/cuda_pipeline/backtest_plan_kernel.cu
+++ b/crates/ml/src/cuda_pipeline/backtest_plan_kernel.cu
@@ -160,13 +160,15 @@ extern "C" __global__ void backtest_plan_state_isv(
     pisv[PLAN_ISV_PROGRESS] = (plan_tgt_bars > plan_thr)
         ? fminf(hold_time / plan_tgt_bars, 2.0f) : 0.0f;
 
-    /* [1] PnL vs profit target [bounded 2.0] */
+    /* [1] PnL vs profit target [symmetric bound -2.0..2.0]
+     * unrealized can be negative → fminf alone leaves unbounded lower tail.
+     * Mirror of SP11 symmetric reward cap (35db31089). */
     pisv[PLAN_ISV_PNL_VS_TARGET] = (plan_profit > 1e-6f)
-        ? fminf(unrealized / (plan_profit * equity + 1e-6f), 2.0f) : 0.0f;
+        ? fmaxf(-2.0f, fminf(unrealized / (plan_profit * equity + 1e-6f), 2.0f)) : 0.0f;
 
-    /* [2] PnL vs stop (negative PnL vs stop → loss approaching) */
+    /* [2] PnL vs stop (negative PnL vs stop → loss approaching) [symmetric bound -2.0..2.0] */
     pisv[PLAN_ISV_PNL_VS_STOP] = (plan_stop > 1e-6f)
-        ? fminf(-unrealized / (plan_stop * equity + 1e-6f), 2.0f) : 0.0f;
+        ? fmaxf(-2.0f, fminf(-unrealized / (plan_stop * equity + 1e-6f), 2.0f)) : 0.0f;
 
     /* [3] Entry conviction (stable across the trade) */
     pisv[PLAN_ISV_ENTRY_CONVICTION] = plan_conv_ent;
diff --git a/crates/ml/src/cuda_pipeline/experience_kernels.cu b/crates/ml/src/cuda_pipeline/experience_kernels.cu
index 65fc38a2e..dcc10f6b1 100644
--- a/crates/ml/src/cuda_pipeline/experience_kernels.cu
+++ b/crates/ml/src/cuda_pipeline/experience_kernels.cu
@@ -846,11 +846,14 @@ extern "C" __global__ void experience_state_gather(
     plan_isv[PLAN_ISV_PROGRESS] = (plan_tgt_bars > plan_thr_sg)
         ? fminf(f_hold_time / plan_tgt_bars, 2.0f)  /* plan progress [0, 2] */
         : 0.0f;
+    /* Symmetric clamp [-2, 2]: f_unrealized_pnl can be negative → fminf alone leaves
+     * an unbounded lower tail (feature jitter at policy input). Mirror of SP11
+     * symmetric reward cap (35db31089). See pearl_symmetric_clamp_audit. */
     plan_isv[PLAN_ISV_PNL_VS_TARGET] = (plan_profit > 1e-6f)
-        ? fminf(f_unrealized_pnl / (plan_profit * f_equity + 1e-6f), 2.0f) /* pnl vs target */
+        ? fmaxf(-2.0f, fminf(f_unrealized_pnl / (plan_profit * f_equity + 1e-6f), 2.0f)) /* pnl vs target */
         : 0.0f;
     plan_isv[PLAN_ISV_PNL_VS_STOP] = (plan_stop > 1e-6f)
-        ? fminf(-f_unrealized_pnl / (plan_stop * f_equity + 1e-6f), 2.0f)  /* pnl vs stop */
+        ? fmaxf(-2.0f, fminf(-f_unrealized_pnl / (plan_stop * f_equity + 1e-6f), 2.0f))  /* pnl vs stop */
         : 0.0f;
     plan_isv[PLAN_ISV_ENTRY_CONVICTION] = plan_conv;  /* conviction at entry [0, 1] */
 
diff --git a/docs/dqn-wire-up-audit.md b/docs/dqn-wire-up-audit.md
index a1107a5d1..bdca78332 100644
--- a/docs/dqn-wire-up-audit.md
+++ b/docs/dqn-wire-up-audit.md
@@ -5687,3 +5687,31 @@ new HEALTH_DIAG line, the follow-up commit will:
 
 Per `feedback_no_partial_refactor`: instrumentation lands as one
 atomic commit; removal lands as one atomic commit (with the fix).
+
+## SP11 plan_isv symmetric clamp — 4 mirror sites (2026-05-04)
+
+The implementer of `35db31089` (symmetric reward cap) flagged 4
+additional asymmetric-clamp sites in `plan_isv` policy-input
+features, mirroring the same bug class but on the feature side
+rather than reward side:
+
+| Site                                  | Slot                  | Bug                                    |
+|---------------------------------------|-----------------------|----------------------------------------|
+| `experience_kernels.cu:850`           | `PLAN_ISV_PNL_VS_TARGET` | `fminf(.., 2.0)` capped above only  |
+| `experience_kernels.cu:853`           | `PLAN_ISV_PNL_VS_STOP`   | `fminf(.., 2.0)` capped above only  |
+| `backtest_plan_kernel.cu:164`         | `PLAN_ISV_PNL_VS_TARGET` | mirror of 850                       |
+| `backtest_plan_kernel.cu:168`         | `PLAN_ISV_PNL_VS_STOP`   | mirror of 853                       |
+
+`unrealized` P&L can be negative (and `-unrealized` becomes negative
+when the position is profitable). With only `fminf(x, 2.0)`, the
+lower tail is unbounded, producing feature jitter at the policy
+input under losing-trade conditions.
+
+Fix: bilateral clamp via `fmaxf(-2.0, fminf(x, 2.0))`. These slots
+feed the network state vector at line 956 of `experience_kernels.cu`
+(consumer site) and at the `pisv` write-out in `backtest_plan_kernel`.
+
+This is the policy-input mirror of the reward-side bug fixed in
+`35db31089`. Both share the same architectural lesson — see
+`pearl_symmetric_clamp_audit` (added in the SP11 close-out commit)
+and `pearl_bounded_modifier_outputs_require_structural_activation`.