PNW· Pinnacle West Capital
Dark pool · off-exchange short volume
Short ratio (latest)
57.8%
20-day average
63.8%
Off-exchange share (20d)
34%
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
109.55
0.15B
107.63
0.50B
105.71
0.34B
103.79
0.52B
101.87
1.45B
99.94
1.55B
98.02
1.04B
96.10
0.24B
94.18
0.20B
92.26
0.45B
90.33
2.05B
88.41
2.30B
86.49
3.43B
84.57
1.55B
82.65
1.11B
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.