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CDW· CDW Corporation
Dark pool · off-exchange short volume
Short ratio (latest)
72.5%
20-day average
72.4%
Off-exchange share (20d)
41%

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

175.32
4.08B
172.24
3.22B
169.17
3.21B
166.09
3.27B
163.02
4.00B
159.94
3.22B
156.87
3.14B
153.79
2.22B
150.71
1.93B
147.64
2.01B
144.56
2.37B
141.49
2.56B
138.41
2.50B
135.34
2.31B
132.26
2.24B

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.

CDW Dark Pool — Off-Exchange & Short Volume — Tapelab