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momentum-system/tests/unit
momentum devandClaude Opus 4.8 2e5346e035 Trigger book: mega-gapper squeeze exception (the LHSW/NXTS fix)
LHSW gapped +278% on 100M shares, was rank 2 in the trigger book at
4:49am, ran +346%, and was the source trader's entire day — the bot's
TRIGGER_GAP_MAX=35 capped it out, same as NXTS two weeks ago, while the
bot spent its entries on the shadow round-trips (SEER/ELAB/PLUG/YRD).

Year-scale replay (n=2,879 ORB entries, 14 months, reverse-split
artifacts excluded by requiring a real volume surge): the 35-150% band
is dead (+0.02R / +0.00R — the cap earns its keep there), but REAL
>150% squeezes (n=82) ran +0.63R with 8/14 months >= 0, 4x the core
band's edge. New gap_squeeze_min/gap_squeeze_rvol re-admit gaps >=150%
only when rvol >= 5 (split repricings show rvol ~0.01 and stay out).
Live: TRIGGER_GAP_SQUEEZE_MIN=150, TRIGGER_GAP_SQUEEZE_RVOL=5.0.
Existing guards (trigger/day extension, halt, BE@+5% ratchet, sizing)
still apply to these names.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-06 16:13:04 -04:00
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