Backtest Lab

Mark-to-market checks on stored hourly price snapshots. Fees and fills excluded.

Poly Rows
5000
Kalshi Rows
400
Edge Snapshots
402
Updated
0m ago

Cross-platform spread convergence

Checks whether flagged Polymarket/Kalshi spreads narrowed after the horizon.

0 tested 0 waiting 0 missing
Avg convergence
+0.00pp
Hit rate
0.0%
Median
+0.00pp
Best / Worst
+0.0 / +0.0
Collecting data. This needs enriched edge snapshots plus future Polymarket and Kalshi price snapshots.

Fade fast moves

Bet against a move that already exceeded the threshold.

25 trades
Avg return
+2.51pp
Hit rate
68.0%
Median
+5.00pp
Best / Worst
+38.0 / -44.9

Fade extreme prices

Bet against very high YES or very low YES prices over the horizon.

231 trades
Avg return
+0.49pp
Hit rate
24.2%
Median
+0.00pp
Best / Worst
+44.9 / -7.5

Momentum follow

Buy the direction of a move that already exceeded the threshold.

25 trades
Avg return
-2.51pp
Hit rate
24.0%
Median
-5.00pp
Best / Worst
+44.9 / -38.0

Fade fast moves sample trades

25 total
NO
19% → 63%
+9.7pp
-44.85pp
NO
10% → 54%
+6.5pp
-44.25pp
YES
28% → 66%
-13.5pp
+38.00pp
1980676
2026-04-24 01:34 UTC
NO
78% → 57%
+6.5pp
+20.50pp
1980676
2026-04-23 23:22 UTC
NO
79% → 62%
+16.5pp
+17.50pp
1980676
2026-04-24 00:26 UTC
YES
77% → 60%
-7.5pp
-17.00pp
1976997
2026-04-24 00:26 UTC
NO
58% → 43%
+7.1pp
+14.40pp
1976997
2026-04-23 23:22 UTC
NO
57% → 44%
+10.0pp
+13.20pp

Fade extreme prices sample trades

231 total
YES
11% → 56%
+4.4pp
+44.90pp
YES
10% → 54%
+6.5pp
+44.25pp
1664037
2026-04-24 00:26 UTC
NO
92% → 82%
+15.0pp
+10.00pp
YES
6% → 16%
-3.0pp
+9.50pp
1664039
2026-04-24 00:26 UTC
YES
7% → 15%
-14.5pp
+7.90pp
1423720
2026-04-24 00:26 UTC
YES
14% → 7%
+0.0pp
-7.50pp
1664039
2026-04-24 01:34 UTC
YES
8% → 14%
-5.5pp
+6.30pp
1664037
2026-04-24 01:34 UTC
NO
90% → 84%
+4.5pp
+6.00pp

Momentum follow sample trades

25 total
YES
19% → 63%
+9.7pp
+44.85pp
YES
10% → 54%
+6.5pp
+44.25pp
NO
28% → 66%
-13.5pp
-38.00pp
1980676
2026-04-24 01:34 UTC
YES
78% → 57%
+6.5pp
-20.50pp
1980676
2026-04-23 23:22 UTC
YES
79% → 62%
+16.5pp
-17.50pp
1980676
2026-04-24 00:26 UTC
NO
77% → 60%
-7.5pp
+17.00pp
1976997
2026-04-24 00:26 UTC
YES
58% → 43%
+7.1pp
-14.40pp
1976997
2026-04-23 23:22 UTC
YES
57% → 44%
+10.0pp
-13.20pp
This backtest uses hourly snapshots and exits at a later snapshot, not final settlement. Treat it as signal research, not a promise of tradable returns.

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