TDG· TransDigm Group
Dark pool · off-exchange short volume
Short ratio (latest)
44.5%
20-day average
48.5%
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
1299.96
10.6B
1277.16
9.47B
1254.35
8.45B
1231.55
6.72B
1208.74
5.40B
1185.93
6.70B
1163.13
6.01B
1140.32
3.43B
1117.51
1.94B
1094.71
1.79B
1071.90
0.95B
1049.09
0.83B
1026.29
0.74B
1003.48
0.67B
980.68
0.34B
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.