HII
Dark pool — off-exchange short volume
Short ratio (latest)
53.2%
20-day average
45.3%
Off-exchange share (20d)
39%
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
331.22
0.26B
325.41
0.50B
319.60
0.75B
313.79
0.77B
307.98
0.57B
302.17
0.38B
296.36
0.42B
290.55
0.31B
284.73
0.51B
278.92
0.73B
273.11
0.81B
267.30
0.99B
261.49
1.23B
255.68
0.75B
249.87
0.99B
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.