Post-Gap Validation
A validation & avoid-list tool: tracks whether post-earnings gaps hold over 5-day price action. For gap-ups it distinguishes pump-and-dumps from genuine reratings; for gap-downs it separates reversals (dip-buys) from continued selloffs (avoids) — so you know which names to stay away from.
Total Analyzed
69
1 pending
Selloff (AVOID)
30
43% of total
Reversal (DIP-BUY)
31
45% of total
Uncertain
8
12% of total
Forward Returns by Classification
Empirical proof the classifier works — for gap-downs, a negative 5d return confirms the AVOID read held. Averages hidden until enough completed trackers exist. (min 5).
| Classification | 5d Return | 20d Return | 5d Win Rate | Tracked (n) |
|---|---|---|---|---|
| ✅ Reversal (DIP-BUY) | +5.4% | +6.3% | 84% | 31 |
| 🚫 Selloff (AVOID) | -7.1% | -10.1% | 7% | 30 |
| ⚠️ Uncertain | +0.6% | -0.7% | 50% | 8 |
| Ticker | Verdict | Confidence | Gap % | Detected |
|---|---|---|---|---|
| TTAN ServiceTitan, Inc. | 🚫 Selloff (AVOID) | 95% | -17.9% | Sep 9, 2026 |
| KC Kingsoft Cloud Holdings Limited | 🚫 Selloff (AVOID) | 95% | -5.6% | Aug 20, 2026 |
| FN Fabrinet | 🚫 Selloff (AVOID) | 95% | -14.2% | Aug 18, 2026 |
| TSSI TSS, Inc. | 🚫 Selloff (AVOID) | 95% | -23.5% | Aug 14, 2026 |
| AIRJ AirJoule Technologies Corporation | 🚫 Selloff (AVOID) | 95% | -12.8% | Aug 14, 2026 |
| YXT YXT.COM Group Holding Limited | 🚫 Selloff (AVOID) | 95% | -35.0% | Aug 14, 2026 |
| AVEX AEVEX Corp. | 🚫 Selloff (AVOID) | 95% | -5.1% | Aug 13, 2026 |
| SPIR Spire Global, Inc. | 🚫 Selloff (AVOID) | 95% | -10.7% | Aug 13, 2026 |
| ONDS Ondas Inc. | 🚫 Selloff (AVOID) | 95% | -8.1% | Aug 13, 2026 |
| FRMI Fermi Inc. | 🚫 Selloff (AVOID) | 95% | -6.6% | Aug 13, 2026 |
| AADX Applied Aerospace & Defense, Inc. | 🚫 Selloff (AVOID) | 95% | -7.3% | Aug 12, 2026 |
| HIMS Hims & Hers Health, Inc. | 🚫 Selloff (AVOID) | 95% | -6.5% | Aug 11, 2026 |
| SOC Sable Offshore Corp. | 🚫 Selloff (AVOID) | 95% | -6.7% | Aug 11, 2026 |
| MRVL Marvell Technology, Inc. | 🚫 Selloff (AVOID) | 94% | -6.7% | Aug 28, 2026 |
| YETI YETI Holdings, Inc. | 🚫 Selloff (AVOID) | 94% | -9.5% | Aug 13, 2026 |
| EVC Entravision Communications Corporation | 🚫 Selloff (AVOID) | 94% | -13.6% | Aug 11, 2026 |
| CRDO Credo Technology Group Holding Ltd | 🚫 Selloff (AVOID) | 87% | -8.7% | Sep 2, 2026 |
| TPR Tapestry, Inc. | 🚫 Selloff (AVOID) | 85% | -13.7% | Aug 13, 2026 |
| KLAR Klarna Group plc | 🚫 Selloff (AVOID) | 81% | -24.7% | Aug 18, 2026 |
| YSS York Space Systems, Inc. | 🚫 Selloff (AVOID) | 80% | -12.6% | Aug 14, 2026 |
| ACM AECOM | 🚫 Selloff (AVOID) | 80% | -6.9% | Aug 11, 2026 |
| LULU lululemon athletica inc. | 🚫 Selloff (AVOID) | 78% | -19.4% | Sep 4, 2026 |
| MDB MongoDB, Inc. | 🚫 Selloff (AVOID) | 78% | -12.9% | Sep 2, 2026 |
| CBRS Cerebras Systems Inc. | 🚫 Selloff (AVOID) | 77% | -15.7% | Aug 13, 2026 |
| GWRE Guidewire Software, Inc. | 🚫 Selloff (AVOID) | 72% | -17.4% | Sep 4, 2026 |
| REZI Resideo Technologies, Inc. | 🚫 Selloff (AVOID) | 69% | -13.5% | Aug 13, 2026 |
| OCTV Octave Intelligence plc | 🚫 Selloff (AVOID) | 68% | -14.3% | Aug 12, 2026 |
| BRZE Braze, Inc. | 🚫 Selloff (AVOID) | 66% | -13.6% | Sep 9, 2026 |
| CSCO Cisco Systems, Inc. | 🚫 Selloff (AVOID) | 66% | -8.0% | Aug 13, 2026 |
| PFGC Performance Food Group Company | 🚫 Selloff (AVOID) | 66% | -7.0% | Aug 12, 2026 |
TTAN🚫 Selloff (AVOID)
ServiceTitan, Inc.
Conf 95% · Gap -17.9% · Sep 9, 2026
KC🚫 Selloff (AVOID)
Kingsoft Cloud Holdings Limited
Conf 95% · Gap -5.6% · Aug 20, 2026
FN🚫 Selloff (AVOID)
Fabrinet
Conf 95% · Gap -14.2% · Aug 18, 2026
TSSI🚫 Selloff (AVOID)
TSS, Inc.
Conf 95% · Gap -23.5% · Aug 14, 2026
AIRJ🚫 Selloff (AVOID)
AirJoule Technologies Corporation
Conf 95% · Gap -12.8% · Aug 14, 2026
YXT🚫 Selloff (AVOID)
YXT.COM Group Holding Limited
Conf 95% · Gap -35.0% · Aug 14, 2026
AVEX🚫 Selloff (AVOID)
AEVEX Corp.
Conf 95% · Gap -5.1% · Aug 13, 2026
SPIR🚫 Selloff (AVOID)
Spire Global, Inc.
Conf 95% · Gap -10.7% · Aug 13, 2026
ONDS🚫 Selloff (AVOID)
Ondas Inc.
Conf 95% · Gap -8.1% · Aug 13, 2026
FRMI🚫 Selloff (AVOID)
Fermi Inc.
Conf 95% · Gap -6.6% · Aug 13, 2026
AADX🚫 Selloff (AVOID)
Applied Aerospace & Defense, Inc.
Conf 95% · Gap -7.3% · Aug 12, 2026
HIMS🚫 Selloff (AVOID)
Hims & Hers Health, Inc.
Conf 95% · Gap -6.5% · Aug 11, 2026
SOC🚫 Selloff (AVOID)
Sable Offshore Corp.
Conf 95% · Gap -6.7% · Aug 11, 2026
MRVL🚫 Selloff (AVOID)
Marvell Technology, Inc.
Conf 94% · Gap -6.7% · Aug 28, 2026
YETI🚫 Selloff (AVOID)
YETI Holdings, Inc.
Conf 94% · Gap -9.5% · Aug 13, 2026
EVC🚫 Selloff (AVOID)
Entravision Communications Corporation
Conf 94% · Gap -13.6% · Aug 11, 2026
CRDO🚫 Selloff (AVOID)
Credo Technology Group Holding Ltd
Conf 87% · Gap -8.7% · Sep 2, 2026
TPR🚫 Selloff (AVOID)
Tapestry, Inc.
Conf 85% · Gap -13.7% · Aug 13, 2026
KLAR🚫 Selloff (AVOID)
Klarna Group plc
Conf 81% · Gap -24.7% · Aug 18, 2026
YSS🚫 Selloff (AVOID)
York Space Systems, Inc.
Conf 80% · Gap -12.6% · Aug 14, 2026
ACM🚫 Selloff (AVOID)
AECOM
Conf 80% · Gap -6.9% · Aug 11, 2026
LULU🚫 Selloff (AVOID)
lululemon athletica inc.
Conf 78% · Gap -19.4% · Sep 4, 2026
MDB🚫 Selloff (AVOID)
MongoDB, Inc.
Conf 78% · Gap -12.9% · Sep 2, 2026
CBRS🚫 Selloff (AVOID)
Cerebras Systems Inc.
Conf 77% · Gap -15.7% · Aug 13, 2026
GWRE🚫 Selloff (AVOID)
Guidewire Software, Inc.
Conf 72% · Gap -17.4% · Sep 4, 2026
REZI🚫 Selloff (AVOID)
Resideo Technologies, Inc.
Conf 69% · Gap -13.5% · Aug 13, 2026
OCTV🚫 Selloff (AVOID)
Octave Intelligence plc
Conf 68% · Gap -14.3% · Aug 12, 2026
BRZE🚫 Selloff (AVOID)
Braze, Inc.
Conf 66% · Gap -13.6% · Sep 9, 2026
CSCO🚫 Selloff (AVOID)
Cisco Systems, Inc.
Conf 66% · Gap -8.0% · Aug 13, 2026
PFGC🚫 Selloff (AVOID)
Performance Food Group Company
Conf 66% · Gap -7.0% · Aug 12, 2026
How It Works
Gap Ups
🚫 Pump & Dump
- • Gap fills >70% within 5 days
- • Volume decays >60% (no follow-through)
- • Lower highs pattern (distribution)
- • Max drawdown >8% from gap close
✅ Genuine Rerating
- • Gap holds (<20% fill)
- • Volume sustained (<30% decay)
- • Higher highs, peak close day 4-5
- • Strong EPS beat or guidance raise
Gap Downs
✅ Reversal (DIP-BUY)
- • Recovered >70% of the down-gap
- • Selling volume decayed (panic exhausted)
- • Higher lows held above the capitulation low
- • Minimal further downside (<2%)
🚫 Selloff (AVOID)
- • Recovery <20% — stayed down
- • Sustained volume (continued distribution)
- • Peak close day 1, lower lows after
- • EPS miss or lowered guidance supporting the de-rating
Signal weights (both directions): Follow-Through 25% · Volume 20% · Price Trajectory 20% · Drawdown 15% · Fundamentals 20%
Classification requires ≥3 days of data; full confidence requires all 5 trading days. ≥60% directional score = decisive classification, otherwise Uncertain.
Classification requires ≥3 days of data; full confidence requires all 5 trading days. ≥60% directional score = decisive classification, otherwise Uncertain.