Bitcoin 5-Minute Market Orderbook Depth — 2026-05-12

On 2026-05-12, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,576 bid/ask snapshots totalling 403.7 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~61,576
Depth snapshots
403.7 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1778559300_orderbook.jsonl produced 1.51 MB of snapshots — the deepest recording of 2026-05-12. 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
0.6285
0.6180
0.665
0.5985
0.58105
0.5795
0.5695
0.55157
0.54153
0.53113
0.5283
0.51380.07
spread1¢
0.514.35
0.4915
0.4840
0.47138
0.46143
0.45183
0.4485
0.4395
0.42105
0.4185
0.480
0.3985
DOWN token
4.97 min remaining
pricesize
0.6185
0.680
0.5985
0.58105
0.5795
0.56125
0.55188
0.54163
0.53113
0.5240
0.5115
0.541.69
spread1¢
0.49489.07
0.4883
0.47118
0.46130
0.45162
0.44135
0.43100
0.42105
0.4190
0.485
0.3980
0.3890

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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