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

BTC 15-Minute Signal Post-Mortem: +15.51 pp Edge

Bitcoin Up or Down - July 28, 1:15PM-1:30PM ET

POLYMARKET ENTRY52.5%83.0% EXECUTABLE
MARX FAIR AT ENTRY0.0%HISTORICAL · CLOSED
MODELED EDGE+15.51 ppNET AT ENTRY
CONFIDENCE83.3%DOWN UNDERPRICED
RETURN19.1%SIMULATED
ROUND REPLAY

Interactive Polymarket vs Marx Fair divergence

Market UP 0.5%Marx Fair UP 0.5%
Market UP and Marx Fair UP history0255075100
Jul 28, 05:16 PMJul 28, 05:20 PMJul 28, 05:25 PMJul 28, 05:29 PMJul 28, 05:34 PM UTC

Market UP and Marx Fair UP history

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-07-28T17:16:15.664Z50.5%0.0%-50.5 pp
2026-07-28T17:17:16.502Z50.5%0.0%-50.5 pp
2026-07-28T17:18:16.351Z50.5%0.0%-50.5 pp
2026-07-28T17:19:16.595Z21.5%0.0%-21.5 pp
2026-07-28T17:20:15.986Z21.5%0.0%-21.5 pp
2026-07-28T17:21:15.801Z52.5%0.0%-52.5 pp
2026-07-28T17:22:05.716Z52.5%0.0%-52.5 pp
2026-07-28T17:22:15.806Z52.5%0.0%-52.5 pp
2026-07-28T17:23:15.845Z64.5%0.0%-64.5 pp
2026-07-28T17:24:16.125Z64.5%0.0%-64.5 pp
2026-07-28T17:25:15.989Z64.5%0.0%-64.5 pp
2026-07-28T17:26:15.794Z64.5%0.0%-64.5 pp
2026-07-28T17:27:16.142Z64.5%0.0%-64.5 pp
2026-07-28T17:28:15.864Z10.5%0.0%-10.5 pp
2026-07-28T17:28:48.686Z10.5%0.0%-10.5 pp
2026-07-28T17:29:43.605Z0.5%0.0%-0.5 pp
2026-07-28T17:29:59.885Z0.5%0.0%-0.5 pp
2026-07-28T17:30:19.902Z0.5%20.5%+20.0 pp
2026-07-28T17:30:24.413Z20.5%20.5%+0.0 pp
2026-07-28T17:30:31.461Z0.5%0.5%+0.0 pp
2026-07-28T17:30:38.851Z0.5%0.0%-0.5 pp
2026-07-28T17:31:15.585Z0.5%0.0%-0.5 pp
2026-07-28T17:32:15.801Z0.5%0.5%+0.0 pp
2026-07-28T17:33:02.649Z0.5%0.5%+0.0 pp
2026-07-28T17:33:15.880Z0.5%0.5%+0.0 pp
2026-07-28T17:34:15.624Z0.5%0.5%+0.0 pp
AUDIT TRAIL

Signal breakdown and trigger

  • Marx Fair was 0.0% while the Polymarket UP price was 52.5%.
  • The executable DOWN entry was 83.0¢ with a net modeled edge of 15.5 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 85.0%, gross edge 15.0%, slippage 0.0%, fee 0.9%, safety 0.5%, net edge 13.6%. Marx fair UP is 0.0%.

BTC 15-Minute Signal Post-Mortem: +15.51 pp Edge | AntiPredict