Tapeab

QCOM

Dark pool — off-exchange short volume

Short ratio (latest)
45.2%
20-day average
37.7%
Off-exchange share (20d)
37%

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

217.41
5.31B
213.60
3.85B
209.78
4.68B
205.97
6.89B
202.15
8.36B
198.34
10.9B
194.52
9.07B
190.71
6.60B
186.90
4.94B
183.08
4.92B
179.27
8.26B
175.45
12.5B
171.64
20.2B
167.82
30.3B
164.01
36.9B

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.