Bitcoin 5-Minute Market Orderbook Depth — 2026-04-29

On 2026-04-29, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,132 bid/ask snapshots totalling 401.1 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~61,132
Depth snapshots
401.1 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1777459500_orderbook.jsonl produced 1.46 MB of snapshots — the deepest recording of 2026-04-29. 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
0.6678
0.65105
0.6492
0.6374
0.6269
0.6169
0.699
0.59106.32
0.58109
0.57109
0.56344
0.55296.02
spread1¢
0.54125.36
0.53360.67
0.52450.85
0.51155
0.51,787.03
0.4917
0.4864.35
0.4797
0.46249
0.45174.77
0.44107.43
0.43127.32
DOWN token
4.97 min remaining
pricesize
0.57127.32
0.56121.43
0.55188.77
0.54313
0.53147
0.52178.35
0.5136
0.51,796.03
0.49150
0.48445.85
0.47360.67
0.46169.36
spread1¢
0.45255.02
0.44308
0.43109
0.4273
0.4170.32
0.463
0.3919
0.3833
0.3738
0.3656
0.3555
0.3442

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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