BAC

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

49.7%

20-day average

43.0%

Off-exchange share (20d)

27%

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

56.97

0.57B

55.87

4.30B

54.78

9.23B

53.68

12.7B

52.58

19.8B

51.49

23.6B

50.39

13.4B

49.30

15.2B

48.20

9.31B

47.11

13.9B

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.