VERIFIED PAPER CASE · 15 MIN
BTC 15-Minute Signal Post-Mortem: +47.98 pp Edge
Bitcoin Up or Down - July 29, 4:00PM-4:15PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 55.5%Marx Fair UP 99.5%
Jul 29, 08:00 PMJul 29, 08:05 PMJul 29, 08:10 PMJul 29, 08:14 PMJul 29, 08:19 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-29T20:03:54.150Z | 39.5% | 39.5% | +0.0 pp |
| 2026-07-29T20:03:56.657Z | 38.5% | 39.5% | +1.0 pp |
| 2026-07-29T20:04:15.519Z | 38.5% | 38.5% | +0.0 pp |
| 2026-07-29T20:04:31.224Z | 38.5% | 0.0% | -38.5 pp |
| 2026-07-29T20:05:45.382Z | 45.5% | 0.0% | -45.5 pp |
| 2026-07-29T20:07:31.817Z | 45.5% | 45.5% | +0.0 pp |
| 2026-07-29T20:07:44.741Z | 44.5% | 44.5% | +0.0 pp |
| 2026-07-29T20:07:55.962Z | 44.5% | 44.5% | +0.0 pp |
| 2026-07-29T20:08:44.272Z | 6.5% | 0.0% | -6.5 pp |
| 2026-07-29T20:09:31.074Z | 44.5% | 0.0% | -44.5 pp |
| 2026-07-29T20:09:45.244Z | 6.5% | 0.0% | -6.5 pp |
| 2026-07-29T20:10:03.702Z | 6.5% | 0.0% | -6.5 pp |
| 2026-07-29T20:10:42.645Z | 6.5% | 6.5% | -0.0 pp |
| 2026-07-29T20:10:54.452Z | 6.5% | 6.5% | -0.0 pp |
| 2026-07-29T20:11:44.055Z | 3.5% | 0.0% | -3.5 pp |
| 2026-07-29T20:12:18.139Z | 6.5% | 0.0% | -6.5 pp |
| 2026-07-29T20:12:37.306Z | 3.5% | 0.0% | -3.5 pp |
| 2026-07-29T20:12:42.332Z | 3.5% | 0.0% | -3.5 pp |
| 2026-07-29T20:13:42.187Z | 58.5% | 52.5% | -6.0 pp |
| 2026-07-29T20:13:55.021Z | 52.5% | 52.5% | +0.0 pp |
| 2026-07-29T20:14:22.284Z | 52.5% | 0.0% | -52.5 pp |
| 2026-07-29T20:14:46.267Z | 52.5% | 0.0% | -52.5 pp |
| 2026-07-29T20:15:42.209Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-29T20:15:52.629Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-29T20:16:17.882Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-29T20:16:42.222Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-29T20:17:44.155Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-29T20:18:14.332Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-29T20:18:47.197Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-29T20:19:50.559Z | 55.5% | 99.5% | +44.0 pp |
AUDIT TRAIL
Signal breakdown and trigger
- Marx Fair was 0.8% while the Polymarket UP price was 50.5%.
- The executable DOWN entry was 49.0¢ with a net modeled edge of 48.0 percentage points.
- Model confidence at the signal was 83.3%.
- Observed order-book spread at entry was 1.0¢.
MODEL NOTE
Marx AI inference
Buy DOWN: $100 VWAP 49.0%, gross edge 50.2%, slippage 0.0%, fee 1.7%, safety 0.5%, net edge 48.0%. Marx fair UP is 0.8%.