Bitcoin 5-Minute Market Orderbook Depth — 2026-06-20

On 2026-06-20, full orderbook depth was captured for 287 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,701 bid/ask snapshots totalling 408.5 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

287
Rounds recorded
~61,701
Depth snapshots
408.5 MB
Raw size
1.1¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1781927700_orderbook.jsonl produced 2.22 MB of snapshots — the deepest recording of 2026-06-20. 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
0.50930
0.50830
0.50730
0.50630
0.50530
0.50430
0.50330
0.50230
0.50130
0.578.71
0.4935.29
0.48621.98
spread1¢
0.48143.52
0.4893
0.47167
0.46367
0.45322
0.44187
0.43530
0.43430
0.43330
0.43230
0.43130
0.43260.04
DOWN token
4.98 min remaining
pricesize
0.57260.04
0.56930
0.56830
0.56730
0.56630
0.56530
0.56187
0.55327
0.54367
0.53167
0.5299
0.51943.52
spread1¢
0.51421.98
0.5140.29
0.578.71
0.49930
0.49830
0.49730
0.49630
0.49530
0.49430
0.49330
0.49230
0.49130

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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