CRL· Charles River Laboratories

Dark pool · off-exchange short volume

as of 2026-11-05

CRL's off-exchange short-volume ratio was 45.1% on 5 Nov 2026, below its 20-day average of 56.9%. Off-exchange trading was 39% of volume over the last 20 sessions. 22 sessions in the last six months had unusually large off-exchange dollar volume, the latest on 4 Nov 2026.

Short ratio (latest)

45.1%

20-day average

56.9%

Off-exchange share (20d)

39%

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

371.97

0.63B

365.44

0.65B

358.92

0.67B

352.39

0.82B

345.87

0.82B

339.34

0.94B

332.82

0.99B

326.29

0.67B

319.76

0.65B

313.24

0.37B

306.71

0.55B

300.19

1.21B

293.66

1.93B

287.14

2.30B

280.61

1.71B

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.