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VERIFIED PAPER CASE · 4 HOURS

ETH 4-Hour Signal Post-Mortem: +39.16 pp Edge

Ethereum Up or Down - July 31, 8:00AM-12:00PM ET

POLYMARKET ENTRY43.0%58.2% EXECUTABLE
MARX FAIR AT ENTRY0.4%HISTORICAL · CLOSED
MODELED EDGE+39.16 ppNET AT ENTRY
CONFIDENCE83.3%DOWN UNDERPRICED
RETURN52.0%SIMULATED
ROUND REPLAY

Interactive Polymarket vs Marx Fair divergence

Market UP 0.1%Marx Fair UP 0.1%
Market UP and Marx Fair UP history0%13%25%38%50%
Jul 31, 12:55 PMJul 31, 01:42 PMJul 31, 02:29 PMJul 31, 03:16 PMJul 31, 04:03 PM UTC

Market UP and Marx Fair UP history

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-07-31T12:55:45.674Z43.0%0.4%-42.6 pp
2026-07-31T12:58:32.325Z33.5%0.4%-33.1 pp
2026-07-31T13:02:13.642Z43.0%0.4%-42.6 pp
2026-07-31T13:05:54.622Z42.0%0.6%-41.4 pp
2026-07-31T13:52:06.295Z32.5%0.0%-32.5 pp
2026-07-31T13:59:25.785Z15.0%0.0%-15.0 pp
2026-07-31T14:13:27.993Z7.5%0.0%-7.5 pp
2026-07-31T14:59:23.412Z5.0%5.0%+0.0 pp
2026-07-31T14:59:46.779Z5.0%5.0%+0.0 pp
2026-07-31T15:57:41.212Z0.1%0.0%-0.1 pp
2026-07-31T15:59:29.296Z0.1%0.0%-0.1 pp
2026-07-31T16:03:45.405Z0.1%0.1%+0.0 pp
AUDIT TRAIL

Signal breakdown and trigger

  • Marx Fair was 0.4% while the Polymarket UP price was 43.0%.
  • The executable DOWN entry was 58.2¢ with a net modeled edge of 39.2 percentage points.
  • Model confidence at the signal was 83.3%.
  • Observed order-book spread at entry was 3.0¢.
MODEL NOTE

Marx AI inference

Buy DOWN: $100 VWAP 58.2%, gross edge 41.6%, slippage 0.2%, fee 1.7%, safety 0.5%, net edge 39.2%. Marx fair UP is 0.4%.

ETH 4-Hour Signal Post-Mortem: +39.16 pp Edge | AntiPredict