Bitcoin 5-Minute Market Orderbook Depth — 2026-05-13

On 2026-05-13, full orderbook depth was captured for 287 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,315 bid/ask snapshots totalling 394.4 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

287
Rounds recorded
~61,315
Depth snapshots
394.4 MB
Raw size
1.4¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1778667900_orderbook.jsonl produced 1.44 MB of snapshots — the deepest recording of 2026-05-13. 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
0.6112
0.667
0.597
0.58132
0.5767
0.56107
0.55127
0.54107
0.53317
0.5219
0.51159.98
0.5112.15
spread1¢
0.49319.22
0.4869
0.47402
0.46162
0.45107
0.4472
0.4330.39
0.42131.98
0.417
0.448.5
0.3912
0.3822
DOWN token
4.98 min remaining
pricesize
0.6222
0.6112
0.648.5
0.597
0.58131.98
0.5730.39
0.5672
0.55107
0.54162
0.53402
0.5269
0.51304.22
spread1¢
0.5112.15
0.49159.98
0.4819
0.47317
0.46107
0.45127
0.44107
0.4367
0.42132
0.417
0.467
0.3912

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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