VERIFIED PAPER CASE · 5 MIN
BTC 5-Minute Signal Post-Mortem: +57.33 pp Edge
Bitcoin Up or Down - July 28, 10:10AM-10:15AM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 0.5%Marx Fair UP 0.5%
Jul 28, 02:10 PMJul 28, 02:12 PMJul 28, 02:15 PMJul 28, 02:17 PMJul 28, 02:19 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T14:10:37.086Z | 43.5% | 43.5% | +0.0 pp |
| 2026-07-28T14:10:57.557Z | 43.5% | 0.0% | -43.5 pp |
| 2026-07-28T14:11:31.067Z | 43.5% | 0.0% | -43.5 pp |
| 2026-07-28T14:12:25.492Z | 43.5% | 43.5% | +0.0 pp |
| 2026-07-28T14:12:31.242Z | 43.5% | 43.5% | +0.0 pp |
| 2026-07-28T14:13:08.987Z | 43.5% | 0.0% | -43.5 pp |
| 2026-07-28T14:13:30.973Z | 43.5% | 0.0% | -43.5 pp |
| 2026-07-28T14:14:31.737Z | 28.5% | 28.5% | +0.0 pp |
| 2026-07-28T14:14:41.178Z | 28.5% | 28.5% | +0.0 pp |
| 2026-07-28T14:15:02.483Z | 28.5% | 0.0% | -28.5 pp |
| 2026-07-28T14:15:30.977Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T14:15:35.726Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T14:16:30.847Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T14:16:35.317Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T14:17:36.055Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T14:18:31.052Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T14:19:30.970Z | 0.5% | 0.5% | +0.0 pp |
AUDIT TRAIL
Signal breakdown and trigger
- Marx Fair was 0.0% while the Polymarket UP price was 43.5%.
- The executable DOWN entry was 40.5¢ with a net modeled edge of 57.3 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 40.5%, gross edge 60.0%, slippage 0.5%, fee 1.7%, safety 0.5%, net edge 57.3%. Marx fair UP is 0.0%.