Bitcoin 5-Minute Market Orderbook Depth — 2026-05-10

On 2026-05-10, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,461 bid/ask snapshots totalling 396.2 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~61,461
Depth snapshots
396.2 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1778380500_orderbook.jsonl produced 1.52 MB of snapshots — the deepest recording of 2026-05-10. 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.

4.98 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.98 min remaining
pricesize
0.5823
0.5718
0.5613
0.5558.56
0.5418
0.538
0.5228.62
0.51287.33
0.5189.65
0.49209
0.489.61
0.47240.27
spread1¢
0.4679.51
0.4550.56
0.4413
0.4365
0.4223
0.4113
0.433
0.3913
0.388
0.3713
0.3652
0.3517
DOWN token
4.98 min remaining
pricesize
0.6517
0.6462
0.6313
0.628
0.6113
0.638
0.5913
0.5818
0.5775
0.5643
0.5550.56
0.54132.27
spread1¢
0.53225.26
0.5227.61
0.51232
0.5184.55
0.49287.33
0.4853.62
0.478
0.4618
0.4583.56
0.4413
0.4318
0.4218

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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