AKAM
Dark pool — off-exchange short volume
Short ratio (latest)
62.3%
20-day average
55.1%
Off-exchange share (20d)
51%
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
150.54
0.86B
147.90
1.35B
145.26
1.58B
142.61
1.76B
139.97
1.18B
137.33
0.57B
134.69
0.43B
132.05
0.13B
129.41
0.07B
126.77
0.26B
124.13
0.87B
121.49
0.86B
118.85
2.84B
116.20
4.28B
113.56
5.50B
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.