Federal Data Hub › FINRA Short Interest · JSON

Vir Biotechnology, Inc. Common (VIR)

Short interest · settlement 2026-05-29

10.81 days to cover

Shares short

18,316,762

Prior settlement

16,833,002

Change

+8.81%

Avg daily volume

1,694,464

Exchange

NNM

About this data

FINRA collects short interest (shares sold short and not yet bought back) twice a month and publishes it by security. Days to cover (short shares ÷ average daily volume) estimates how many days of normal trading it would take short sellers to close their positions — a high value is a classic short-squeeze setup. This is true short interest, distinct from daily short-sale volume (which includes market-maker hedging). See also this security's fails-to-deliver.

Source: FINRA Equity Short Interest. License: CC0 1.0.