DXCM· Dexcom
Dark pool · off-exchange short volume
Short ratio (latest)
49.4%
20-day average
49.7%
Off-exchange share (20d)
35%
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
94.65
1.36B
92.99
1.48B
91.33
2.60B
89.67
3.68B
88.01
4.10B
86.35
4.66B
84.69
4.88B
83.03
3.69B
81.37
3.30B
79.71
3.33B
78.05
3.28B
76.39
3.58B
74.73
4.36B
73.07
5.74B
71.41
5.97B
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.