Bitcoin 5-Minute Market Orderbook Depth — 2026-08-23

On 2026-08-23, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 62,829 bid/ask snapshots totalling 413.8 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~62,829
Depth snapshots
413.8 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1787484000_orderbook.jsonl produced 1.59 MB of snapshots — the deepest recording of 2026-08-23. 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
0.7776
0.7671
0.75985
0.7450
0.7352.22
0.7235
0.7140
0.745
0.6920
0.6815
0.6731
0.6636.7
spread1¢
0.65892.31
0.6225
0.6125.66
0.625.6
0.5920
0.5820
0.5720
0.5620
0.5520
0.5424.34
0.5340
0.5240
DOWN token
4.99 min remaining
pricesize
0.4740
0.4644.34
0.4527.73
0.4420
0.4320
0.4220
0.4120
0.425.6
0.3932.36
0.3825
0.35600
0.34105.76
spread1¢
0.3330.7
0.3215
0.3115
0.345
0.2940
0.2835
0.2752.22
0.2650
0.251,095.54
0.2471
0.2376
0.2294.09

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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