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ETH Daily Signal Post-Mortem: +11.21 pp Edge

Ethereum Up or Down on July 18?

POLYMARKET ENTRY78.5%22.0% EXECUTABLE
MARX FAIR AT ENTRY65.1%HISTORICAL · CLOSED
MODELED EDGE+11.21 ppNET AT ENTRY
CONFIDENCE83.3%DOWN UNDERPRICED
RETURN-78.1%SIMULATED
ROUND REPLAY

Interactive Polymarket vs Marx Fair divergence

Market UP 93.5%Marx Fair UP 82.2%
Market UP and Marx Fair UP history0255075100
Jul 18, 03:31 AMJul 18, 06:11 AMJul 18, 08:50 AMJul 18, 11:30 AMJul 18, 02:10 PM UTC

Market UP and Marx Fair UP history

Text equivalent of the chart
TimePolymarketMarx FairEdge
2026-07-18T10:13:01.474Z88.5%73.5%-15.0 pp
2026-07-18T10:14:59.361Z88.5%73.6%-14.9 pp
2026-07-18T10:22:01.572Z88.5%73.6%-14.9 pp
2026-07-18T10:29:58.506Z88.5%76.9%-11.6 pp
2026-07-18T10:43:02.218Z88.5%74.0%-14.5 pp
2026-07-18T10:53:03.213Z89.5%75.6%-13.9 pp
2026-07-18T10:57:02.388Z90.0%76.5%-13.5 pp
2026-07-18T10:58:56.819Z90.5%76.5%-14.0 pp
2026-07-18T11:37:02.116Z90.5%77.5%-13.0 pp
2026-07-18T11:42:02.022Z90.5%76.2%-14.3 pp
2026-07-18T11:49:04.635Z90.5%78.3%-12.2 pp
2026-07-18T11:57:56.956Z93.5%79.0%-14.5 pp
2026-07-18T11:59:02.573Z93.5%79.0%-14.5 pp
2026-07-18T12:06:01.805Z93.5%84.2%-9.3 pp
2026-07-18T12:18:04.447Z94.5%76.9%-17.6 pp
2026-07-18T12:46:03.395Z92.5%80.7%-11.8 pp
2026-07-18T12:55:58.461Z95.5%85.2%-10.3 pp
2026-07-18T12:57:02.666Z95.5%85.2%-10.3 pp
2026-07-18T12:58:05.698Z95.5%83.1%-12.4 pp
2026-07-18T13:03:05.331Z95.5%78.5%-17.0 pp
2026-07-18T13:05:01.288Z95.5%79.2%-16.3 pp
2026-07-18T13:18:05.496Z82.5%73.3%-9.2 pp
2026-07-18T13:21:02.723Z82.5%67.3%-15.2 pp
2026-07-18T13:23:05.246Z80.5%70.6%-9.9 pp
2026-07-18T13:27:02.879Z80.5%74.4%-6.1 pp
2026-07-18T13:33:04.802Z85.5%76.0%-9.5 pp
2026-07-18T13:55:58.633Z92.5%79.6%-12.9 pp
2026-07-18T13:59:02.014Z92.5%79.6%-12.9 pp
2026-07-18T14:07:56.763Z93.5%82.2%-11.3 pp
2026-07-18T14:10:01.370Z93.5%82.2%-11.3 pp
AUDIT TRAIL

Signal breakdown and trigger

  • Marx Fair was 65.1% while the Polymarket UP price was 78.5%.
  • The executable DOWN entry was 22.0¢ with a net modeled edge of 11.2 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 21.0%, gross edge 13.6%, slippage 0.0%, fee 1.2%, safety 0.5%, net edge 11.9%. Oracle fair UP is 65.4%.

ETH Daily Signal Post-Mortem: +11.21 pp Edge | AntiPredict