HAL

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

27.2%

20-day average

38.6%

Off-exchange share (20d)

30%

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

43.15

0.15B

42.35

0.41B

41.55

1.11B

40.75

1.18B

39.95

2.18B

39.15

2.94B

38.35

3.18B

37.55

4.21B

36.75

4.13B

35.96

5.54B

35.16

6.63B

34.36

7.54B

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.