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VERIFIED PAPER CASE · 5 MIN

ETH 5-Minute Signal Post-Mortem: +29.67 pp Edge

Ethereum Up or Down - July 27, 4:20PM-4:25PM ET

POLYMARKET ENTRY64.5%68.3% EXECUTABLE
MARX FAIR AT ENTRY100.0%HISTORICAL · CLOSED
MODELED EDGE+29.67 ppNET AT ENTRY
CONFIDENCE83.3%UP UNDERPRICED
RETURN43.2%SIMULATED
ROUND REPLAY

Interactive Polymarket vs Marx Fair divergence

Market UP 99.5%Marx Fair UP 83.5%
Market UP and Marx Fair UP history0255075100
Jul 27, 08:20 PMJul 27, 08:22 PMJul 27, 08:25 PMJul 27, 08:27 PMJul 27, 08:29 PM UTC

Market UP and Marx Fair UP history

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-07-27T20:20:37.137Z64.5%64.5%+0.0 pp
2026-07-27T20:20:39.533Z64.5%64.5%+0.0 pp
2026-07-27T20:21:00.294Z64.5%100.0%+35.5 pp
2026-07-27T20:21:00.555Z64.5%100.0%+35.5 pp
2026-07-27T20:21:30.779Z64.5%100.0%+35.5 pp
2026-07-27T20:22:33.599Z64.5%50.5%-14.0 pp
2026-07-27T20:22:34.441Z50.5%50.5%+0.0 pp
2026-07-27T20:22:41.038Z64.5%64.5%+0.0 pp
2026-07-27T20:22:56.536Z64.5%100.0%+35.5 pp
2026-07-27T20:23:39.235Z83.5%100.0%+16.5 pp
2026-07-27T20:24:30.747Z83.5%83.5%+0.0 pp
2026-07-27T20:24:39.682Z83.5%83.5%+0.0 pp
2026-07-27T20:25:06.574Z83.5%100.0%+16.5 pp
2026-07-27T20:25:30.785Z83.5%100.0%+16.5 pp
2026-07-27T20:26:30.723Z83.5%83.5%+0.0 pp
2026-07-27T20:26:43.946Z83.5%83.5%+0.0 pp
2026-07-27T20:27:30.816Z83.5%83.5%+0.0 pp
2026-07-27T20:28:30.732Z83.5%83.5%+0.0 pp
2026-07-27T20:29:30.769Z99.5%83.5%-16.0 pp
AUDIT TRAIL

Signal breakdown and trigger

  • Marx Fair was 100.0% while the Polymarket UP price was 64.5%.
  • The executable UP entry was 68.3¢ with a net modeled edge of 29.7 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 UP: $100 VWAP 68.3%, gross edge 32.0%, slippage 0.3%, fee 1.5%, safety 0.5%, net edge 29.7%. Marx fair UP is 100.0%.

ETH 5-Minute Signal Post-Mortem: +29.67 pp Edge | AntiPredict