WRB· W. R. Berkley Corporation
Dark pool · off-exchange short volume
Short ratio (latest)
59.6%
20-day average
61.8%
Off-exchange share (20d)
34%
Darkpool density
big day, short ratio above trendbelow trendbubble size = how unusual ($vol z-score)
Last ~6 months. Bubbles mark days of unusually large off-exchange dollar volume (≥1.5σ vs the trailing 60 days). Daily resolution — not print-level data.
Darkpool levels ±15% of spot, since 2018-10-01
78.29
0.00B
76.89
0.50B
75.49
0.71B
74.09
0.95B
72.70
1.57B
71.30
2.95B
69.90
3.15B
68.50
2.87B
67.10
2.99B
65.71
1.51B
64.31
0.49B
62.91
0.27B
61.51
0.47B
60.11
0.49B
Historical off-exchange $ volume at price: each day's volume spread across that day's range, summed over the full FINRA history. Heavy shelves often act as support/resistance magnets. Amber row = spot's bin.
Off-exchange short-volume ratio
short ratio (20d, right) daily off-exchange share (left)
FINRA daily TRF data, last 2 years. A persistently HIGH short ratio is mostly passive market-maker liquidity provision (commonly read as accumulation pressure) — not naively bearish.