Bitcoin 5-Minute Market Orderbook Depth — 2026-10-27

On 2026-10-27, full orderbook depth was captured for 171 Polymarket BTC 5-minute Up/Down market rounds — approximately 36,034 bid/ask snapshots totalling 244.3 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

171
Rounds recorded
~36,034
Depth snapshots
244.3 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1793097900_orderbook.jsonl produced 1.69 MB of snapshots — the deepest recording of 2026-10-27. Watch both books evolve from open to resolution: the Up-side spread tightened from 2¢ 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: 2¢
UP token
4.97 min remaining
pricesize
0.8683.17
0.79316.67
0.78352.67
0.77332.19
0.76342.67
0.75318.67
0.74327.75
0.73264.73
0.72252.67
0.71176
0.778
0.69114.04
spread2¢
0.671,680.25
0.66928.5
0.65576
0.64457.75
0.63199
0.62176
0.61144
0.6161
0.59199
0.58113
0.57166
0.5681
DOWN token
4.97 min remaining
pricesize
0.43196
0.42224
0.41237
0.4205.25
0.39221.5
0.38224
0.37320
0.36679.75
0.35699
0.34742.5
0.33995.6
0.321,800.4
spread1¢
0.31234.04
0.3138
0.29191
0.28294
0.27477.73
0.26542.75
0.25410.67
0.24402.67
0.23337.19
0.22335.67
0.21379.67
0.2926.42

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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