PAYX
Dark pool — off-exchange short volume
Short ratio (latest)
75.6%
20-day average
61.9%
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
115.71
2.57B
113.68
5.01B
111.65
6.37B
109.62
6.68B
107.59
5.71B
105.56
3.79B
103.53
4.03B
101.50
4.43B
99.47
3.55B
97.44
3.97B
95.41
2.36B
93.38
2.44B
91.35
3.51B
89.32
2.04B
87.29
0.88B
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.