Tapeab

USB

Dark pool — off-exchange short volume

Short ratio (latest)
53.8%
20-day average
46.4%
Off-exchange share (20d)
29%

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

60.11
0.59B
58.97
0.65B
57.84
1.06B
56.71
2.47B
55.57
4.71B
54.44
2.76B
53.30
4.25B
52.17
1.95B
51.03
2.88B
49.90
2.56B
48.77
4.28B

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.