Bitcoin 5-Minute Market Orderbook Depth — 2026-08-16

On 2026-08-16, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 66,854 bid/ask snapshots totalling 386 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~66,854
Depth snapshots
386 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1786916400_orderbook.jsonl produced 1.5 MB of snapshots — the deepest recording of 2026-08-16. 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.

4.97 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.97 min remaining
pricesize
0.4430
0.4340
0.42143.99
0.4130
0.430
0.3930
0.3830
0.3740
0.3526.54
0.345
0.33124.01
0.3262.66
spread1¢
0.3189.53
0.3320.94
0.2949.6
0.28146.6
0.2719.6
0.269.6
0.2552.6
0.2455.93
0.2378.6
0.2239.6
0.21188.6
0.2112.4
DOWN token
4.97 min remaining
pricesize
0.8162.4
0.79238.6
0.7839.6
0.7778.6
0.7660.93
0.7552.6
0.749.6
0.7329.6
0.72146.6
0.7139.6
0.7290.94
0.6996.26
spread1¢
0.6879.84
0.67185.25
0.6620
0.6546.54
0.6450
0.6360
0.6250
0.6150
0.650
0.5971
0.58163.99
0.5780

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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