Bitcoin Prediction Markets
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VERIFIED PAPER CASE · 1 HOUR

BTC 1-Hour Signal Post-Mortem: +11.96 pp Edge

Bitcoin Up or Down - July 27, 12PM ET

POLYMARKET ENTRY49.5%52.0% EXECUTABLE
MARX FAIR AT ENTRY33.8%HISTORICAL · CLOSED
MODELED EDGE+11.96 ppNET AT ENTRY
CONFIDENCE83.3%DOWN UNDERPRICED
RETURN-14.2%SIMULATED
ROUND REPLAY

Interactive Polymarket vs Marx Fair divergence

Market UP 100.0%Marx Fair UP 100.0%
Market UP and Marx Fair UP history0%25%50%75%100%
Jul 27, 04:01 PMJul 27, 04:16 PMJul 27, 04:32 PMJul 27, 04:47 PMJul 27, 05:03 PM UTC

Market UP and Marx Fair UP history

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-07-27T16:01:08.443Z53.0%22.0%-31.0 pp
2026-07-27T16:05:01.184Z53.0%29.7%-23.3 pp
2026-07-27T16:07:00.628Z63.5%37.0%-26.5 pp
2026-07-27T16:09:03.416Z61.5%30.4%-31.1 pp
2026-07-27T16:11:03.482Z63.5%31.6%-31.9 pp
2026-07-27T16:13:00.378Z61.5%37.9%-23.6 pp
2026-07-27T16:17:00.184Z64.0%23.1%-40.9 pp
2026-07-27T16:19:03.338Z64.0%16.0%-48.0 pp
2026-07-27T16:25:09.464Z62.5%13.6%-48.9 pp
2026-07-27T16:27:00.340Z62.5%57.4%-5.1 pp
2026-07-27T16:29:00.000Z82.5%59.2%-23.3 pp
2026-07-27T16:58:59.606Z100.0%100.0%+0.0 pp
2026-07-27T16:59:30.698Z100.0%100.0%+0.0 pp
2026-07-27T17:03:34.127Z100.0%100.0%+0.0 pp
AUDIT TRAIL

Signal breakdown and trigger

  • Marx Fair was 33.8% while the Polymarket UP price was 49.5%.
  • The executable DOWN entry was 52.0¢ with a net modeled edge of 12.0 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 52.0%, gross edge 15.2%, slippage 1.0%, fee 1.7%, safety 0.5%, net edge 12.0%. Marx fair UP is 33.8%.