Bitcoin 5-Minute Market Orderbook Depth — 2026-05-26

On 2026-05-26, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,996 bid/ask snapshots totalling 411.7 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~61,996
Depth snapshots
411.7 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1779805200_orderbook.jsonl produced 1.51 MB of snapshots — the deepest recording of 2026-05-26. 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.

4.98 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.98 min remaining
pricesize
0.56118
0.55600
0.54414
0.5378.19
0.5270.12
0.51326.44
0.5278.5
0.4988
0.48588.7
0.47375.53
0.46193.5
0.451,470.42
spread1¢
0.4481.37
0.43269
0.42189.89
0.411,803.46
0.4110
0.395
0.3813
0.3718
0.3633
0.3533
0.3413
0.3313
DOWN token
4.98 min remaining
pricesize
0.6713
0.6613
0.6533
0.6433
0.6318
0.6263
0.6163
0.6110
0.591,803.46
0.58197.89
0.57269
0.5681.37
spread1¢
0.551,474.42
0.54193.5
0.53425.53
0.52638.7
0.51138
0.5278.5
0.49326.44
0.4870.12
0.4778.19
0.46414
0.45600
0.44118

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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