Bitcoin 5-Minute Market Orderbook Depth — 2026-07-20

On 2026-07-20, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 59,290 bid/ask snapshots totalling 412 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~59,290
Depth snapshots
412 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1784545500_orderbook.jsonl produced 1.66 MB of snapshots — the deepest recording of 2026-07-20. 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.

4.98 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.98 min remaining
pricesize
0.6525
0.6495
0.635
0.625
0.6110
0.645
0.5919.52
0.5840.04
0.5758.61
0.5658.18
0.55597.78
0.54262.42
spread1¢
0.5364.91
0.5220
0.51240
0.550
0.4930.94
0.4841
0.4758
0.4625
0.45202
0.44123.18
0.4353.61
0.4254.04
DOWN token
4.98 min remaining
pricesize
0.58141.84
0.57141.76
0.56239.37
0.55284.35
0.54110.55
0.53307.15
0.52111.49
0.51230.94
0.5100
0.49240
0.4820
0.47108.91
spread1¢
0.46326.8
0.45727
0.44188
0.43113
0.4271
0.4155
0.470
0.3965
0.3855
0.3785
0.36155
0.3580

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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