Bitcoin Prediction Markets
Bitcoin 15-Minute hub
VERIFIED PAPER CASE · 15 MIN

BTC 15-Minute Signal Post-Mortem: +6.98 pp Edge

Bitcoin Up or Down - July 28, 2:45PM-3:00PM ET

POLYMARKET ENTRY9.5%92.0% EXECUTABLE
MARX FAIR AT ENTRY0.0%HISTORICAL · CLOSED
MODELED EDGE+6.98 ppNET AT ENTRY
CONFIDENCE83.3%DOWN UNDERPRICED
RETURN8.1%SIMULATED
ROUND REPLAY

Interactive Polymarket vs Marx Fair divergence

Market UP 9.5%Marx Fair UP 0.5%
Market UP and Marx Fair UP history0255075100
Jul 28, 06:45 PMJul 28, 06:50 PMJul 28, 06:55 PMJul 28, 06:59 PMJul 28, 07:04 PM UTC

Market UP and Marx Fair UP history

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-07-28T18:45:29.667Z54.5%0.0%-54.5 pp
2026-07-28T18:46:28.164Z54.5%0.0%-54.5 pp
2026-07-28T18:47:28.248Z54.5%0.0%-54.5 pp
2026-07-28T18:48:21.878Z54.5%0.0%-54.5 pp
2026-07-28T18:48:22.588Z54.5%0.0%-54.5 pp
2026-07-28T18:48:29.466Z64.5%0.0%-64.5 pp
2026-07-28T18:49:29.277Z64.5%0.0%-64.5 pp
2026-07-28T18:50:28.280Z61.5%0.0%-61.5 pp
2026-07-28T18:51:27.986Z61.5%0.0%-61.5 pp
2026-07-28T18:52:27.913Z61.5%0.0%-61.5 pp
2026-07-28T18:53:31.685Z61.5%0.0%-61.5 pp
2026-07-28T18:54:58.942Z9.5%0.0%-9.5 pp
2026-07-28T18:55:05.841Z9.5%0.0%-9.5 pp
2026-07-28T18:55:28.109Z9.5%0.0%-9.5 pp
2026-07-28T18:56:28.207Z9.5%0.0%-9.5 pp
2026-07-28T18:58:48.152Z9.5%0.0%-9.5 pp
2026-07-28T18:58:49.446Z54.5%0.0%-54.5 pp
2026-07-28T18:58:58.340Z9.5%0.0%-9.5 pp
2026-07-28T18:59:40.605Z0.5%0.0%-0.5 pp
2026-07-28T19:00:09.479Z0.5%0.0%-0.5 pp
2026-07-28T19:00:40.556Z0.5%0.0%-0.5 pp
2026-07-28T19:01:38.453Z0.5%0.5%+0.0 pp
2026-07-28T19:02:42.393Z0.5%0.5%+0.0 pp
2026-07-28T19:02:46.983Z0.5%0.5%+0.0 pp
2026-07-28T19:03:43.108Z0.5%0.5%+0.0 pp
2026-07-28T19:04:40.992Z9.5%0.5%-9.0 pp
AUDIT TRAIL

Signal breakdown and trigger

  • Marx Fair was 0.0% while the Polymarket UP price was 9.5%.
  • The executable DOWN entry was 92.0¢ with a net modeled edge of 7.0 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 92.0%, gross edge 8.0%, slippage 0.0%, fee 0.5%, safety 0.5%, net edge 7.0%. Marx fair UP is 0.0%.

BTC 15-Minute Signal Post-Mortem: +6.98 pp Edge | AntiPredict