ALB· Albemarle Corporation
Dark pool · off-exchange short volume
Short ratio (latest)
56.5%
20-day average
59.8%
Off-exchange share (20d)
39%
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
133.97
1.86B
131.62
1.99B
129.27
2.27B
126.92
2.45B
124.57
2.61B
122.22
2.58B
119.87
3.24B
117.52
3.88B
115.17
3.29B
112.82
2.21B
110.47
2.14B
108.12
1.95B
105.77
1.22B
103.42
0.90B
101.07
0.92B
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.