Bitcoin 5-Minute Market Orderbook Depth — 2026-04-25

On 2026-04-25, full orderbook depth was captured for 287 Polymarket BTC 5-minute Up/Down market rounds — approximately 61,668 bid/ask snapshots totalling 399.2 MB of JSONL. Each snapshot lists every price level and size for both the Up and Down side.

287
Rounds recorded
~61,668
Depth snapshots
399.2 MB
Raw size
1.2¢
Avg opening spread
Up side, best ask − best bid

Replay the day's most active round

btc-updown-5m-1777077900_orderbook.jsonl produced 1.46 MB of snapshots — the deepest recording of 2026-04-25. 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.

4.99 min left
frame 1/48▸ auto-playing — drag to scrubUp-side spread: 1¢
UP token
4.99 min remaining
pricesize
0.851,710.33
0.8450
0.831,134
0.8222
0.8121
0.8132
0.79965
0.7827.32
0.7731
0.7620
0.75619
0.74121.93
spread1¢
0.7349.29
0.72781.99
0.687
0.67691.6
0.66692
0.65125.15
0.64180
0.63190
0.611,048.98
0.6300
0.59536.89
0.58833.59
DOWN token
4.99 min remaining
pricesize
0.441,369.98
0.43140
0.42833.59
0.41536.89
0.4300
0.391,048.98
0.37190
0.36180
0.35125.15
0.34692
0.33512.65
0.27645.51
spread1¢
0.266.08
0.25619
0.2420
0.2331
0.2227.32
0.21965
0.2137
0.1921
0.1822
0.171,134
0.1650
0.151,715.33

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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