HSIC
Dark pool — off-exchange short volume
Short ratio (latest)
68.5%
20-day average
61.3%
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
90.40
0.11B
88.82
0.33B
87.23
0.38B
85.64
0.69B
84.06
0.68B
82.47
0.84B
80.89
1.63B
79.30
2.34B
77.71
3.00B
76.13
3.72B
74.54
3.82B
72.96
3.69B
71.37
4.07B
69.78
4.60B
68.20
4.17B
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.