VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +47.75 pp Edge
Ethereum Up or Down - July 27, 10:00PM-10:05PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 1.5%Marx Fair UP 0.1%
Jul 28, 02:01 AMJul 28, 02:03 AMJul 28, 02:05 AMJul 28, 02:07 AMJul 28, 02:09 AM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T02:01:30.749Z | 42.5% | 42.5% | +0.0 pp |
| 2026-07-28T02:01:44.499Z | 42.5% | 42.5% | +0.0 pp |
| 2026-07-28T02:01:55.209Z | 42.5% | 0.0% | -42.5 pp |
| 2026-07-28T02:02:31.025Z | 42.5% | 0.0% | -42.5 pp |
| 2026-07-28T02:03:30.823Z | 2.5% | 2.5% | +0.0 pp |
| 2026-07-28T02:03:45.142Z | 2.5% | 2.5% | +0.0 pp |
| 2026-07-28T02:03:54.601Z | 2.5% | 0.0% | -2.5 pp |
| 2026-07-28T02:04:32.267Z | 2.5% | 0.0% | -2.5 pp |
| 2026-07-28T02:05:30.786Z | 0.1% | 42.5% | +42.4 pp |
| 2026-07-28T02:05:39.250Z | 42.5% | 42.5% | +0.0 pp |
| 2026-07-28T02:05:49.172Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T02:05:55.937Z | 0.1% | 0.0% | -0.0 pp |
| 2026-07-28T02:05:56.351Z | 0.1% | 0.0% | -0.0 pp |
| 2026-07-28T02:06:30.811Z | 0.1% | 0.0% | -0.0 pp |
| 2026-07-28T02:07:33.697Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T02:07:39.752Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T02:08:35.522Z | 0.0% | 0.1% | +0.1 pp |
| 2026-07-28T02:08:42.740Z | 0.1% | 0.1% | +0.0 pp |
| 2026-07-28T02:09:30.771Z | 1.5% | 0.1% | -1.4 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 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%.