MDT
Dark pool — off-exchange short volume
Short ratio (latest)
38.5%
20-day average
22.0%
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
91.66
10.7B
90.05
15.9B
88.45
15.2B
86.84
15.1B
85.23
14.2B
83.62
15.1B
82.01
16.6B
80.40
19.8B
78.80
17.3B
77.19
20.0B
75.58
19.0B
73.97
14.8B
72.36
11.7B
70.76
6.86B
69.15
5.86B
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.