NOC

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

48.2%

20-day average

37.1%

Off-exchange share (20d)

42%

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

619.13

1.29B

608.27

1.29B

597.41

2.19B

586.55

3.29B

575.69

5.67B

564.82

4.57B

553.96

4.89B

543.10

2.95B

532.24

1.43B

521.38

2.10B

510.51

5.96B

499.65

6.77B

488.79

6.05B

477.93

9.08B

467.07

11.5B

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.