ODFL

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

38.8%

20-day average

63.1%

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

252.61

0.03B

247.93

0.24B

243.25

0.39B

238.57

0.17B

233.90

0.32B

229.22

0.52B

224.54

1.69B

219.86

2.33B

215.18

2.36B

210.51

2.51B

205.83

3.32B

201.15

5.79B

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.