ABT
Dark pool — off-exchange short volume
Short ratio (latest)
13.5%
20-day average
26.0%
Off-exchange share (20d)
41%
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
101.44
19.3B
99.66
19.3B
97.88
15.1B
96.10
11.3B
94.32
6.16B
92.54
7.28B
90.76
10.4B
88.98
4.73B
87.20
6.10B
85.42
5.07B
83.64
4.62B
81.86
3.66B
80.08
3.98B
78.30
2.57B
76.52
3.86B
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.