REGN· Regeneron Pharmaceuticals

Dark pool · off-exchange short volume

as of 2026-11-05

REGN's off-exchange short-volume ratio was 38.3% on 5 Nov 2026, below its 20-day average of 48.1%. Off-exchange trading was 37% of volume over the last 20 sessions. 10 sessions in the last six months had unusually large off-exchange dollar volume, the latest on 4 Nov 2026.

Short ratio (latest)

38.3%

20-day average

48.1%

Off-exchange share (20d)

37%

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

1060.96

2.16B

1042.35

2.47B

1023.74

1.70B

1005.12

2.23B

986.51

2.23B

967.90

3.86B

949.28

4.56B

930.67

4.08B

912.06

1.93B

893.44

2.23B

874.83

1.59B

856.22

1.25B

837.60

4.49B

818.99

8.56B

800.38

9.23B

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.