PSA· Public Storage

Dark pool · off-exchange short volume

Dark pool as of 2026-11-03 · latest session 2026-11-05

PSA's off-exchange short-volume ratio was 84.4% on 3 Nov 2026, above its 20-day average of 70.6%. Off-exchange trading was 38% of volume over the last 20 sessions. 9 sessions in the last six months had unusually large off-exchange dollar volume, the latest on 2 Nov 2026.

Short ratio (latest)

84.4%

20-day average

70.6%

Off-exchange share (20d)

38%

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

346.57

0.04B

339.90

0.54B

333.24

1.58B

326.58

3.31B

319.91

3.94B

313.25

3.20B

306.58

3.77B

299.92

5.81B

293.25

6.52B

286.59

8.41B

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.