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VERIFIED PAPER CASE · 5 MIN

ETH 5-Minute Signal Post-Mortem: +17.78 pp Edge

Ethereum Up or Down - July 28, 4:50PM-4:55PM ET

POLYMARKET ENTRY50.5%80.6% EXECUTABLE
MARX FAIR AT ENTRY0.0%HISTORICAL · CLOSED
MODELED EDGE+17.78 ppNET AT ENTRY
CONFIDENCE83.3%DOWN UNDERPRICED
RETURN22.4%SIMULATED
ROUND REPLAY

Interactive Polymarket vs Marx Fair divergence

Market UP 0.0%Marx Fair UP 0.5%
Market UP and Marx Fair UP history0255075100
Jul 28, 08:51 PMJul 28, 08:53 PMJul 28, 08:55 PMJul 28, 08:57 PMJul 28, 08:59 PM UTC

Market UP and Marx Fair UP history

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-07-28T20:51:43.863Z18.5%0.0%-18.5 pp
2026-07-28T20:52:42.396Z18.5%0.0%-18.5 pp
2026-07-28T20:53:41.751Z18.5%0.0%-18.5 pp
2026-07-28T20:54:42.811Z18.5%0.0%-18.5 pp
2026-07-28T20:55:43.918Z0.5%0.0%-0.5 pp
2026-07-28T20:56:07.612Z0.5%0.0%-0.5 pp
2026-07-28T20:56:40.943Z0.5%0.0%-0.5 pp
2026-07-28T20:58:01.786Z0.5%0.5%+0.0 pp
2026-07-28T20:58:17.127Z0.5%0.5%+0.0 pp
2026-07-28T20:59:00.948Z0.0%0.5%+0.5 pp
2026-07-28T20:59:08.901Z0.5%0.5%+0.0 pp
2026-07-28T20:59:41.701Z0.0%0.5%+0.5 pp
AUDIT TRAIL

Signal breakdown and trigger

  • Marx Fair was 0.0% while the Polymarket UP price was 50.5%.
  • The executable DOWN entry was 80.6¢ with a net modeled edge of 17.8 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 80.6%, gross edge 20.0%, slippage 0.6%, fee 1.1%, safety 0.5%, net edge 17.8%. Marx fair UP is 0.0%.

ETH 5-Minute Signal Post-Mortem: +17.78 pp Edge | AntiPredict