VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +43.19 pp Edge
Ethereum Up or Down - July 28, 5:55PM-6:00PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 0.0%Marx Fair UP 55.5%
Jul 28, 09:55 PMJul 28, 09:57 PMJul 28, 09:59 PMJul 28, 10:02 PMJul 28, 10:04 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T21:55:10.625Z | 57.5% | 0.0% | -57.5 pp |
| 2026-07-28T21:56:40.901Z | 57.5% | 0.0% | -57.5 pp |
| 2026-07-28T21:58:02.789Z | 49.5% | 0.0% | -49.5 pp |
| 2026-07-28T21:58:55.831Z | 57.5% | 0.0% | -57.5 pp |
| 2026-07-28T21:59:45.556Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T21:59:58.747Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T22:00:58.188Z | 0.1% | 0.5% | +0.5 pp |
| 2026-07-28T22:01:03.934Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T22:01:15.133Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T22:02:01.610Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T22:02:46.034Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T22:03:40.097Z | 55.5% | 55.5% | +0.0 pp |
| 2026-07-28T22:04:20.375Z | 55.5% | 55.5% | +0.0 pp |
| 2026-07-28T22:04:41.603Z | 0.0% | 55.5% | +55.5 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 54.6¢ with a net modeled edge of 43.2 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 42.6%, gross edge 58.0%, slippage 0.6%, fee 1.7%, safety 0.5%, net edge 55.2%. Marx fair UP is 0.0%.