VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +51.73 pp Edge
Ethereum Up or Down - July 28, 12:10AM-12:15AM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 0.5%Marx Fair UP 0.5%
Jul 28, 04:10 AMJul 28, 04:12 AMJul 28, 04:14 AMJul 28, 04:17 AMJul 28, 04:19 AM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T04:10:08.102Z | 49.5% | 0.0% | -49.5 pp |
| 2026-07-28T04:10:31.959Z | 54.5% | 0.0% | -54.5 pp |
| 2026-07-28T04:11:30.853Z | 54.5% | 0.0% | -54.5 pp |
| 2026-07-28T04:12:30.946Z | 54.5% | 0.0% | -54.5 pp |
| 2026-07-28T04:13:30.803Z | 20.5% | 0.0% | -20.5 pp |
| 2026-07-28T04:14:30.800Z | 20.5% | 0.0% | -20.5 pp |
| 2026-07-28T04:15:30.819Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T04:15:43.496Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T04:16:30.902Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T04:17:30.970Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T04:17:35.332Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T04:18:31.032Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T04:19:30.781Z | 0.5% | 0.5% | +0.0 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 46.0¢ with a net modeled edge of 51.7 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 46.0%, gross edge 55.0%, slippage 1.0%, fee 1.7%, safety 0.5%, net edge 51.7%. Marx fair UP is 0.0%.