VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +45.47 pp Edge
Ethereum Up or Down - July 28, 8:30AM-8:35AM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 99.5%Marx Fair UP 99.5%
Jul 28, 12:30 PMJul 28, 12:32 PMJul 28, 12:33 PMJul 28, 12:35 PMJul 28, 12:36 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T12:30:37.935Z | 41.5% | 41.5% | +0.0 pp |
| 2026-07-28T12:30:49.372Z | 66.5% | 66.5% | +0.0 pp |
| 2026-07-28T12:31:00.229Z | 66.5% | 0.0% | -66.5 pp |
| 2026-07-28T12:31:31.208Z | 66.5% | 0.0% | -66.5 pp |
| 2026-07-28T12:32:30.991Z | 66.5% | 66.5% | +0.0 pp |
| 2026-07-28T12:32:46.329Z | 66.5% | 66.5% | +0.0 pp |
| 2026-07-28T12:33:01.558Z | 66.5% | 0.0% | -66.5 pp |
| 2026-07-28T12:33:31.083Z | 66.5% | 0.0% | -66.5 pp |
| 2026-07-28T12:34:31.861Z | 99.5% | 0.0% | -99.5 pp |
| 2026-07-28T12:35:33.312Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T12:36:31.053Z | 99.5% | 99.5% | +0.0 pp |
| 2026-07-28T12:36:50.828Z | 99.5% | 99.5% | +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 52.3¢ with a net modeled edge of 45.5 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 52.3%, gross edge 49.0%, slippage 1.3%, fee 1.7%, safety 0.5%, net edge 45.5%. Marx fair UP is 0.0%.