Bitcoin 5-Minute Market Orderbook Depth — 2026-08-29

On 2026-08-29, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 60,962 bid/ask snapshots totalling 401.4 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~60,962
Depth snapshots
401.4 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1788020100_orderbook.jsonl produced 1.52 MB of snapshots — the deepest recording of 2026-08-29. 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.

4.97 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.97 min remaining
pricesize
0.8140
0.885
0.79384.48
0.78198
0.7772.78
0.76150
0.7567
0.7462.78
0.7374.78
0.7277.78
0.7171.78
0.756.22
spread1¢
0.6910.2
0.68217.66
0.67152
0.66169.38
0.65194.3
0.64117
0.6311.03
0.6235
0.6125
0.625
0.585
0.575
DOWN token
4.97 min remaining
pricesize
0.425
0.3925
0.38115.95
0.3736.03
0.36142
0.35179.3
0.34109.38
0.33132
0.32186
0.3170
0.366.66
0.2926.66
spread1¢
0.2899.22
0.2742
0.26151
0.2597
0.24155
0.23105
0.22100
0.21188.34
0.2120
0.19287.48
0.18285
0.17256

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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