UAL
Dark pool — off-exchange short volume
Short ratio (latest)
58.1%
20-day average
41.1%
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
116.84
1.32B
114.79
2.56B
112.74
2.99B
110.69
3.46B
108.64
5.04B
106.59
6.08B
104.54
6.31B
102.49
4.89B
100.44
5.20B
98.39
6.53B
96.34
7.24B
94.29
8.62B
92.24
8.61B
90.19
8.27B
88.14
8.12B
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.