ORLY
Dark pool — off-exchange short volume
Short ratio (latest)
38.1%
20-day average
32.1%
Off-exchange share (20d)
35%
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
102.85
3.14B
101.04
3.22B
99.24
3.74B
97.43
2.54B
95.63
3.86B
93.82
6.92B
92.02
7.69B
90.21
5.53B
88.41
3.26B
86.61
0.95B
84.80
0.15B
83.00
0.15B
81.19
0.16B
79.39
0.14B
77.58
0.09B
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.