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.
20,981
Market rounds
79
Recorded days
4,482,779+
Depth snapshots
28.9 GB raw JSONL
1.1¢
Avg opening spread
Up side, best ask − best bid
Inside the book
Replay of the most active round of 2026-07-26, 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.
4.97 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.97 min remaining
pricesize
0.6145.56
0.6456
0.5522.22
0.535
0.5225.09
0.51324.9
0.586.8
0.49149.04
0.476
0.4610
0.4566.23
0.435
spread1¢
0.42299.27
0.4121.66
0.4313.18
0.395
0.3811
0.375
0.36115
0.3536
0.3411
0.3356
0.3231.24
0.315
DOWN token
4.97 min remaining
pricesize
0.695
0.6831.24
0.6756
0.6611
0.6536
0.64115
0.635
0.6211
0.615
0.6438.18
0.5921.66
0.58293.27
spread1¢
0.575
0.5566.23
0.5410
0.536
0.51149.04
0.591.8
0.49324.9
0.4825.09
0.475
0.4522.22
0.4581
0.3945.56
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Daily statistics: win rates, volatility, lead changes and tick previews for every recorded day.