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Dark pool · off-exchange short volume
Short ratio (latest)
48.9%
20-day average
48.9%
Off-exchange share (20d)
30%

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

83.57
0.04B
82.08
0.29B
80.59
0.61B
79.10
0.70B
77.60
0.93B
76.11
1.08B
74.62
0.65B
73.13
0.18B
71.64
0.35B
70.14
2.04B
68.65
3.29B
67.16
2.12B
65.67
0.80B
64.17
0.33B

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.

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