FISV· Fiserv
Dark pool · off-exchange short volume
Short ratio (latest)
50.4%
20-day average
52.2%
Off-exchange share (20d)
34%
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
58.80
1.22B
57.77
1.15B
56.74
2.12B
55.71
1.81B
54.67
1.84B
53.64
1.50B
52.61
2.01B
51.58
1.84B
50.55
1.30B
49.52
0.86B
48.49
0.94B
47.45
0.53B
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.