Bitcoin 5-Minute Market Orderbook Depth — 2026-10-15

On 2026-10-15, full orderbook depth was captured for 211 Polymarket BTC 5-minute Up/Down market rounds — approximately 43,586 bid/ask snapshots totalling 292.8 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

211
Rounds recorded
~43,586
Depth snapshots
292.8 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1792056300_orderbook.jsonl produced 1.76 MB of snapshots — the deepest recording of 2026-10-15. 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
0.72454
0.71454
0.7454
0.69453
0.68471
0.67448
0.66453
0.65453
0.64143
0.63563.74
0.62548
0.611,605.69
spread1¢
0.686.02
0.59121.59
0.58523
0.57503
0.5653
0.5548
0.5453
0.53195
0.521,710
0.51196.59
0.5197
0.49194
DOWN token
4.98 min remaining
pricesize
0.51194
0.5197
0.49196.59
0.481,690
0.47195
0.4653
0.4548
0.4453
0.43563
0.42563
0.4181.59
0.450
spread1¢
0.391,685.69
0.38568
0.37503.74
0.36143
0.35453
0.34453
0.33448
0.32471
0.31453
0.3454
0.29454
0.28454

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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