PFE
Dark pool — off-exchange short volume
Short ratio (latest)
51.6%
20-day average
42.9%
Off-exchange share (20d)
42%
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
29.24
10.1B
28.72
13.5B
28.21
19.1B
27.70
21.6B
27.18
23.8B
26.67
34.0B
26.16
34.9B
25.65
35.0B
25.13
31.7B
24.62
37.8B
24.11
45.4B
23.59
54.3B
23.08
35.5B
22.57
19.9B
22.05
11.0B
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.