CRL· Charles River Laboratories
Dark pool · off-exchange short volume
Short ratio (latest)
52.3%
20-day average
38.7%
Off-exchange share (20d)
43%
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
317.22
0.33B
311.65
0.12B
306.09
0.17B
300.52
0.46B
294.96
0.96B
289.39
1.66B
283.83
1.37B
278.26
0.87B
272.69
0.59B
267.13
0.82B
261.56
0.82B
256.00
0.83B
250.43
1.16B
244.87
1.45B
239.30
1.88B
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.