REGN
Dark pool — off-exchange short volume
Short ratio (latest)
46.9%
20-day average
29.9%
Off-exchange share (20d)
37%
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
688.08
6.72B
676.01
5.58B
663.94
4.54B
651.87
5.66B
639.79
7.64B
627.72
8.37B
615.65
10.6B
603.58
12.9B
591.51
9.93B
579.44
10.3B
567.37
12.0B
555.29
10.9B
543.22
7.01B
531.15
3.89B
519.08
5.55B
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.