Bitcoin 5-Minute Market Orderbook Depth — 2026-08-09

On 2026-08-09, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 64,812 bid/ask snapshots totalling 398.8 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~64,812
Depth snapshots
398.8 MB
Raw size
1.3¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1786282800_orderbook.jsonl produced 1.59 MB of snapshots — the deepest recording of 2026-08-09. Watch both books evolve from open to resolution: the Up-side spread tightened from 1¢ to 0¢ as the outcome crystallised. Bars show size at each level, scaled within each ladder.

4.96 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.96 min remaining
pricesize
0.6629
0.65110
0.6498
0.6361.04
0.6207
0.5948.78
0.5712
0.5549.44
0.547
0.525
0.517
0.48438.61
spread1¢
0.47210.25
0.4652.64
0.4554.44
0.4410
0.4317
0.4270.26
0.4190.78
0.4149
0.3910
0.3810
0.3778.04
0.36400
DOWN token
4.96 min remaining
pricesize
0.64115
0.6393.04
0.6225
0.6157.33
0.6164
0.59105.78
0.5859.35
0.5732
0.5660.7
0.5574.55
0.5467.64
0.53510.25
spread1¢
0.52411.89
0.497
0.485
0.467
0.4549.44
0.4415
0.4327
0.4215
0.4163.78
0.422
0.3921
0.3815

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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