UHS
Dark pool — off-exchange short volume
Short ratio (latest)
67.0%
20-day average
64.2%
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
164.09
0.88B
161.21
0.75B
158.33
0.47B
155.46
0.94B
152.58
1.02B
149.70
1.31B
146.82
1.66B
143.94
2.01B
141.06
2.09B
138.18
1.17B
135.30
1.52B
132.42
1.66B
129.55
2.36B
126.67
2.75B
123.79
2.17B
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.