AJG· Arthur J. Gallagher & Co.
Dark pool · off-exchange short volume
Short ratio (latest)
47.5%
20-day average
62.9%
Off-exchange share (20d)
40%
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
273.96
2.56B
269.16
1.19B
264.35
2.19B
259.55
3.23B
254.74
5.57B
249.93
5.65B
245.13
5.29B
240.32
3.79B
235.51
2.34B
230.71
2.43B
225.90
3.76B
221.09
4.05B
216.29
4.95B
211.48
4.49B
206.68
3.79B
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.