Bitcoin 5-Minute Market Orderbook Depth — 2026-05-25

On 2026-05-25, full orderbook depth was captured for 85 Polymarket BTC 5-minute Up/Down market rounds — approximately 18,150 bid/ask snapshots totalling 120.3 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

85
Rounds recorded
~18,150
Depth snapshots
120.3 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1779750300_orderbook.jsonl produced 1.47 MB of snapshots — the deepest recording of 2026-05-25. 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.

4.99 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.99 min remaining
pricesize
0.6415
0.635
0.625
0.615
0.6162
0.5950
0.5850
0.5755
0.5690
0.55151
0.5493.93
0.5362.21
spread1¢
0.52128.06
0.5147.25
0.5566.79
0.4920
0.4815
0.47147
0.4687
0.4564.99
0.4470
0.4370
0.4230
0.4130
DOWN token
4.99 min remaining
pricesize
0.5930
0.5850
0.5770
0.5670
0.5584.99
0.54107
0.53167
0.5235
0.5120
0.5586.79
0.4967.25
0.48186.72
spread1¢
0.4742.66
0.4693.93
0.45171
0.4490
0.4375
0.4270
0.4170
0.4182
0.395
0.385
0.375
0.3615

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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