POOL· Pool Corporation
Dark pool · off-exchange short volume
Short ratio (latest)
49.2%
20-day average
54.3%
Off-exchange share (20d)
47%
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
197.27
0.65B
193.80
0.65B
190.34
0.78B
186.88
0.85B
183.42
0.94B
179.96
0.81B
176.50
0.58B
173.04
0.42B
169.58
0.29B
166.12
0.21B
162.66
0.12B
159.20
0.05B
155.74
0.08B
152.28
0.09B
148.81
0.08B
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.