Polymarket BTC Orderbook Snapshots (5-Minute Markets)
Full bid/ask depth snapshots from Polymarket BTC 5-minute Up/Down markets, captured roughly every 1.5 seconds as JSONL. Every price level and size, for both the Up and Down side.
30,077
Market rounds
110
Recorded days
6,450,389+
Depth snapshots
41.4 GB raw JSONL
1.1¢
Avg opening spread
Up side, best ask − best bid
Inside the book
Replay of the most active round of 2026-08-26, from open to resolution. It plays automatically — grab the slider to scrub through time yourself. Each JSONL line carries this full depth, every ~1.5 seconds.
4.98 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 2¢
UP token
4.98 min remaining
pricesize
0.7335
0.7255
0.7166
0.792.29
0.6930
0.687
0.6747.78
0.6651.7
0.6537.07
0.6463.01
0.632.91
0.6213.33
spread2¢
0.648.69
0.5930
0.58455.6
0.57230
0.56251.2
0.5565
0.5440
0.5395
0.5265.6
0.5145
0.560
0.4959.68
DOWN token
4.98 min remaining
pricesize
0.4950
0.4870.6
0.47100
0.4645
0.4565
0.44251.2
0.4330
0.42635.6
0.4135
0.435.6
0.3910
0.3840
spread1¢
0.377.91
0.3668.01
0.3547.07
0.3456.7
0.3382.78
0.3237
0.3130
0.392.29
0.2971
0.28655
0.2735
0.2635
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Daily statistics: win rates, volatility, lead changes and tick previews for every recorded day.