VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +46.75 pp Edge
Ethereum Up or Down - July 28, 4:35PM-4:40PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 7.5%Marx Fair UP 0.1%
Jul 28, 08:35 PMJul 28, 08:37 PMJul 28, 08:40 PMJul 28, 08:42 PMJul 28, 08:44 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T20:35:41.759Z | 68.5% | 0.0% | -68.5 pp |
| 2026-07-28T20:36:43.436Z | 68.5% | 0.0% | -68.5 pp |
| 2026-07-28T20:37:41.960Z | 68.5% | 0.0% | -68.5 pp |
| 2026-07-28T20:38:43.281Z | 68.5% | 0.0% | -68.5 pp |
| 2026-07-28T20:39:41.606Z | 68.5% | 0.0% | -68.5 pp |
| 2026-07-28T20:40:41.851Z | 0.1% | 0.0% | -0.0 pp |
| 2026-07-28T20:41:17.281Z | 0.1% | 0.0% | -0.0 pp |
| 2026-07-28T20:41:39.018Z | 0.1% | 0.0% | -0.0 pp |
| 2026-07-28T20:42:50.259Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T20:42:58.629Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T20:43:43.526Z | 7.5% | 0.1% | -7.4 pp |
| 2026-07-28T20:44:12.195Z | 0.0% | 0.1% | +0.1 pp |
| 2026-07-28T20:44:41.593Z | 7.5% | 0.1% | -7.4 pp |
AUDIT TRAIL
Signal breakdown and trigger
- Marx Fair was 0.0% while the Polymarket UP price was 49.5%.
- The executable DOWN entry was 51.0¢ with a net modeled edge of 46.8 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 51.5%, gross edge 49.0%, slippage 0.5%, fee 1.7%, safety 0.5%, net edge 46.3%. Marx fair UP is 0.0%.