VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +45.75 pp Edge
Ethereum Up or Down - July 28, 8:15AM-8:20AM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 83.5%Marx Fair UP 83.5%
Jul 28, 12:15 PMJul 28, 12:17 PMJul 28, 12:19 PMJul 28, 12:22 PMJul 28, 12:24 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T12:15:31.400Z | 40.5% | 40.5% | +0.0 pp |
| 2026-07-28T12:15:45.362Z | 40.5% | 40.5% | +0.0 pp |
| 2026-07-28T12:16:01.011Z | 40.5% | 0.0% | -40.5 pp |
| 2026-07-28T12:16:31.012Z | 83.5% | 0.0% | -83.5 pp |
| 2026-07-28T12:17:41.245Z | 49.5% | 49.5% | +0.0 pp |
| 2026-07-28T12:17:58.675Z | 49.5% | 0.0% | -49.5 pp |
| 2026-07-28T12:19:55.737Z | 83.5% | 83.5% | +0.0 pp |
| 2026-07-28T12:20:05.240Z | 83.5% | 0.0% | -83.5 pp |
| 2026-07-28T12:20:32.794Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-28T12:21:31.027Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T12:21:59.331Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T12:22:35.448Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T12:23:53.520Z | 100.0% | 83.5% | -16.5 pp |
| 2026-07-28T12:24:07.255Z | 83.5% | 83.5% | +0.0 pp |
| 2026-07-28T12:24:19.072Z | 83.5% | 83.5% | +0.0 pp |
AUDIT TRAIL
Signal breakdown and trigger
- Marx Fair was 0.0% while the Polymarket UP price was 50.0%.
- The executable DOWN entry was 52.0¢ with a net modeled edge of 45.7 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 52.0%, gross edge 49.0%, slippage 1.0%, fee 1.7%, safety 0.5%, net edge 45.8%. Marx fair UP is 0.0%.