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

On 2026-08-08, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 65,485 bid/ask snapshots totalling 404.8 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~65,485
Depth snapshots
404.8 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1786161900_orderbook.jsonl produced 1.52 MB of snapshots — the deepest recording of 2026-08-08. 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
0.635.69
0.59322.04
0.5728.24
0.5330
0.525
0.515
0.566.99
0.4920
0.4825
0.4610
0.4520
0.4346.34
spread1¢
0.42136.47
0.4125
0.415
0.3915
0.3855
0.37305.5
0.3618.88
0.35109.28
0.345
0.335
0.3228
0.3137.68
DOWN token
4.98 min remaining
pricesize
0.6937.68
0.6828
0.675
0.665
0.65109.28
0.6418.88
0.63305.5
0.6255
0.6115
0.615
0.5930
0.58125.68
spread1¢
0.5746.34
0.565
0.5410
0.5225
0.5120
0.566.99
0.495
0.485
0.4730
0.455
0.4323.24
0.41322.04

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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