WDC· Western Digital
Dark pool · off-exchange short volume
Short ratio (latest)
36.0%
20-day average
41.6%
Off-exchange share (20d)
46%
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
509.79
5.42B
500.84
6.05B
491.90
6.90B
482.95
7.23B
474.01
9.14B
465.07
10.3B
456.12
9.67B
447.18
8.22B
438.24
7.42B
429.29
5.84B
420.35
2.74B
411.41
2.73B
402.46
1.83B
393.52
1.40B
384.57
1.55B
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.