PSA

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

78.4%

20-day average

72.9%

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

346.87

0.15B

340.33

0.89B

333.78

1.10B

327.24

1.43B

320.70

1.40B

314.15

2.15B

307.61

3.45B

301.06

4.98B

294.52

5.79B

287.97

7.58B

281.43

8.73B

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.