Bitcoin 5-Minute Market Orderbook Depth — 2026-06-18

On 2026-06-18, full orderbook depth was captured for 284 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,163 bid/ask snapshots totalling 404.7 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

284
Rounds recorded
~61,163
Depth snapshots
404.7 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1781774700_orderbook.jsonl produced 1.76 MB of snapshots — the deepest recording of 2026-06-18. 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
0.661
0.59109.32
0.5870
0.57156.77
0.56141
0.55176
0.54270.66
0.53160
0.52110
0.5130
0.530
0.4972.97
spread1¢
0.4828.33
0.47105
0.46281
0.45151
0.44111
0.43122
0.4244.3
0.41135.32
0.4252.21
0.39136.69
0.3841.58
0.3750
DOWN token
4.98 min remaining
pricesize
0.6355
0.6241.58
0.61111.69
0.6217.21
0.59135.32
0.5849.3
0.57122
0.56116
0.55151
0.54100
0.5334
0.5218.71
spread1¢
0.51135.97
0.530
0.4940
0.48110
0.47165
0.46270.66
0.45176
0.44146
0.43156.77
0.4265
0.4189.32
0.461

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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