VERIFIED PAPER CASE · 5 MIN
BTC 5-Minute Signal Post-Mortem: +47.75 pp Edge
Bitcoin Up or Down - July 28, 1:50PM-1:55PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 0.0%Marx Fair UP 0.0%
Jul 28, 05:51 PMJul 28, 05:53 PMJul 28, 05:55 PMJul 28, 05:57 PMJul 28, 05:59 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T17:51:19.682Z | 44.5% | 44.5% | +0.0 pp |
| 2026-07-28T17:52:16.669Z | 44.5% | 44.5% | +0.0 pp |
| 2026-07-28T17:53:32.596Z | 44.5% | 44.5% | +0.0 pp |
| 2026-07-28T17:54:34.516Z | 44.5% | 44.5% | +0.0 pp |
| 2026-07-28T17:55:15.844Z | 0.5% | 44.5% | +44.0 pp |
| 2026-07-28T17:55:43.043Z | 44.5% | 44.5% | +0.0 pp |
| 2026-07-28T17:56:10.177Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T17:56:25.385Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T17:57:15.780Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T17:58:19.950Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T17:59:08.754Z | 0.0% | 0.0% | +0.0 pp |
| 2026-07-28T17:59:30.343Z | 0.0% | 0.0% | +0.0 pp |
AUDIT TRAIL
Signal breakdown and trigger
- Marx Fair was 0.0% while the Polymarket UP price was 50.5%.
- The executable DOWN entry was 50.0¢ with a net modeled edge of 47.7 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 50.0%, gross edge 50.0%, slippage 0.0%, fee 1.8%, safety 0.5%, net edge 47.7%. Marx fair UP is 0.0%.