AMT· American Tower
Dark pool · off-exchange short volume
Short ratio (latest)
44.0%
20-day average
37.9%
Off-exchange share (20d)
33%
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
202.75
12.8B
199.19
10.4B
195.64
12.9B
192.08
11.0B
188.52
15.6B
184.96
15.8B
181.41
16.4B
177.85
19.6B
174.29
21.8B
170.74
17.2B
167.18
11.1B
163.62
6.04B
160.07
5.39B
156.51
1.94B
152.95
0.88B
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.