ZBH· Zimmer Biomet
Dark pool · off-exchange short volume
Short ratio (latest)
55.9%
20-day average
53.3%
Off-exchange share (20d)
36%
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
106.58
5.10B
104.71
4.91B
102.84
4.63B
100.97
3.51B
99.10
2.90B
97.23
2.80B
95.36
3.08B
93.49
4.03B
91.62
4.53B
89.75
3.37B
87.88
2.68B
86.01
1.62B
84.14
1.08B
82.27
1.06B
80.40
0.30B
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.