VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +45.97 pp Edge
Ethereum Up or Down - July 28, 12:10PM-12:15PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 0.5%Marx Fair UP 0.5%
Jul 28, 04:10 PMJul 28, 04:12 PMJul 28, 04:14 PMJul 28, 04:17 PMJul 28, 04:19 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T16:10:16.966Z | 38.5% | 38.6% | +0.1 pp |
| 2026-07-28T16:11:15.403Z | 38.5% | 38.6% | +0.1 pp |
| 2026-07-28T16:11:23.343Z | 38.5% | 38.6% | +0.1 pp |
| 2026-07-28T16:11:45.239Z | 38.5% | 0.0% | -38.5 pp |
| 2026-07-28T16:12:15.288Z | 38.5% | 0.0% | -38.5 pp |
| 2026-07-28T16:13:17.668Z | 38.5% | 38.6% | +0.1 pp |
| 2026-07-28T16:13:24.651Z | 38.5% | 38.6% | +0.1 pp |
| 2026-07-28T16:13:48.064Z | 38.5% | 0.0% | -38.5 pp |
| 2026-07-28T16:14:30.763Z | 5.5% | 0.0% | -5.5 pp |
| 2026-07-28T16:14:36.939Z | 5.5% | 0.0% | -5.5 pp |
| 2026-07-28T16:15:15.603Z | 5.5% | 5.5% | +0.0 pp |
| 2026-07-28T16:15:38.755Z | 5.5% | 5.5% | +0.0 pp |
| 2026-07-28T16:16:15.643Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T16:16:22.821Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T16:17:15.050Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T16:18:17.386Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T16:18:28.581Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T16:19:15.337Z | 0.5% | 0.5% | +0.0 pp |
AUDIT TRAIL
Signal breakdown and trigger
- Marx Fair was 0.5% while the Polymarket UP price was 49.5%.
- The executable DOWN entry was 51.3¢ with a net modeled edge of 46.0 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 51.0%, gross edge 49.0%, slippage 0.0%, fee 1.7%, safety 0.5%, net edge 46.7%. Marx fair UP is 0.0%.