Bitcoin 5-Minute Market Orderbook Depth — 2026-08-22

On 2026-08-22, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,939 bid/ask snapshots totalling 410.2 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~61,939
Depth snapshots
410.2 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1787363700_orderbook.jsonl produced 1.58 MB of snapshots — the deepest recording of 2026-08-22. Watch both books evolve from open to resolution: the Up-side spread tightened from 1¢ to 1¢ as the outcome crystallised. Bars show size at each level, scaled within each ladder.

4.98 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.98 min remaining
pricesize
0.6885.56
0.67117.56
0.66995.26
0.65133.26
0.64251.22
0.6374.56
0.6267.15
0.6115
0.653.17
0.5916.67
0.5816.67
0.5764.27
spread1¢
0.5671.51
0.5596.67
0.5456.67
0.53652.52
0.5230
0.51217.69
0.5315.06
0.49445
0.4830
0.4730
0.4630
0.4515
DOWN token
4.98 min remaining
pricesize
0.5545
0.5460
0.5360
0.5230
0.51445
0.5315.06
0.49217.69
0.4830
0.47962.52
0.4666.67
0.45131.21
0.44176.51
spread1¢
0.4356.49
0.4216.67
0.4141.78
0.453.17
0.3915
0.3882.71
0.3764.56
0.36251.22
0.35133.26
0.34995.26
0.33117.56
0.3285.56

Showing 48 sampled snapshots, 12 levels nearest the touch on each side. The raw JSONL carries the complete ladder — every level, every ~1.5 seconds, for both tokens.

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