Bitcoin 5-Minute Market Orderbook Depth — 2026-10-16

On 2026-10-16, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 59,953 bid/ask snapshots totalling 402.4 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~59,953
Depth snapshots
402.4 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1792139700_orderbook.jsonl produced 1.67 MB of snapshots — the deepest recording of 2026-10-16. 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
0.7714
0.69707
0.68705
0.67713
0.66734
0.65765
0.64819
0.63744
0.62759
0.611,638
0.6528
0.5998
spread1¢
0.5867.28
0.57113
0.56153
0.55588
0.541,643
0.53153
0.5283
0.5193
0.593
0.4978
0.4878
0.47228
DOWN token
4.98 min remaining
pricesize
0.53223
0.5273
0.5178
0.593
0.4998
0.48158
0.47158
0.461,653
0.45588
0.44173
0.43113
0.4242.28
spread1¢
0.4193.47
0.4533
0.391,628
0.38764
0.37744
0.36819
0.35765
0.34734
0.33713
0.32705
0.31707
0.3714

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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