Bitcoin 5-Minute Market Orderbook Depth — 2026-06-28

On 2026-06-28, full orderbook depth was captured for 288 Polymarket BTC 5-minute Up/Down market rounds — approximately 63,227 bid/ask snapshots totalling 409.4 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

288
Rounds recorded
~63,227
Depth snapshots
409.4 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1782651600_orderbook.jsonl produced 1.58 MB of snapshots — the deepest recording of 2026-06-28. 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.

4.97 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.97 min remaining
pricesize
0.5640
0.5569
0.54401
0.5364
0.5260
0.5135
0.544.76
0.4960
0.48171.34
0.47545.81
0.4651.8
0.45249.93
spread1¢
0.44334.36
0.4329
0.4210
0.4117
0.470.25
0.395
0.3810
0.3660
0.3555
0.3435
0.33157.92
0.32117.84
DOWN token
4.97 min remaining
pricesize
0.68117.84
0.67187.92
0.6694
0.65151.68
0.6495
0.6325
0.6210
0.615
0.680.25
0.5932
0.5820
0.5739
spread2¢
0.55336.6
0.5489
0.53614.81
0.52171.34
0.51125
0.579.76
0.4935
0.4870
0.4769
0.46406
0.4564
0.4440

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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