VERIFIED PAPER CASE · 5 MIN
ETH 5-Minute Signal Post-Mortem: +46.01 pp Edge
Ethereum Up or Down - July 28, 12:25PM-12:30PM ET
ROUND REPLAY
Interactive Polymarket vs Marx Fair divergence
Market UP 0.5%Marx Fair UP 0.5%
Jul 28, 04:26 PMJul 28, 04:28 PMJul 28, 04:30 PMJul 28, 04:32 PMJul 28, 04:34 PM UTC
Market UP and Marx Fair UP history
| Time | Polymarket | Marx Fair | Edge |
|---|---|---|---|
| 2026-07-28T16:26:15.129Z | 49.5% | 49.5% | +0.0 pp |
| 2026-07-28T16:26:23.983Z | 49.5% | 49.5% | +0.0 pp |
| 2026-07-28T16:26:46.499Z | 49.5% | 0.0% | -49.5 pp |
| 2026-07-28T16:28:22.550Z | 49.5% | 49.5% | +0.0 pp |
| 2026-07-28T16:28:25.724Z | 8.5% | 49.5% | +41.0 pp |
| 2026-07-28T16:29:25.035Z | 8.5% | 8.5% | -0.0 pp |
| 2026-07-28T16:29:25.533Z | 8.5% | 8.5% | -0.0 pp |
| 2026-07-28T16:29:57.020Z | 8.5% | 0.0% | -8.5 pp |
| 2026-07-28T16:30:28.186Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T16:30:38.975Z | 0.5% | 0.0% | -0.5 pp |
| 2026-07-28T16:31:25.570Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T16:31:33.003Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T16:32:31.323Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T16:33:25.818Z | 0.5% | 0.5% | +0.0 pp |
| 2026-07-28T16:34:25.950Z | 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 51.7¢ with a net modeled edge of 46.0 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 51.3%, gross edge 49.0%, slippage 0.3%, fee 1.7%, safety 0.5%, net edge 46.4%. Marx fair UP is 0.0%.