TDY· Teledyne Technologies
Dark pool · off-exchange short volume
Short ratio (latest)
41.9%
20-day average
45.2%
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
688.32
0.71B
676.24
0.81B
664.17
1.22B
652.09
1.95B
640.02
2.13B
627.94
2.89B
615.87
2.08B
603.79
1.03B
591.71
0.33B
579.64
0.64B
567.56
1.10B
555.49
1.70B
543.41
1.63B
531.34
0.79B
519.26
1.69B
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.