PNR· Pentair
Dark pool · off-exchange short volume
Short ratio (latest)
38.0%
20-day average
41.3%
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
64.50
1.12B
63.37
0.90B
62.24
1.07B
61.11
1.00B
59.97
0.73B
58.84
0.52B
57.71
0.51B
56.58
0.64B
55.45
0.37B
54.32
0.57B
53.19
0.59B
52.05
0.54B
50.92
0.66B
49.79
0.62B
48.66
0.62B
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.