About Butterfly Network, Inc. (BFLY) data
Data as of September 30, 2026.
Butterfly Network, Inc. (BFLY) has 31.64M shares sold short as of the latest FINRA settlement report on September 30, 2026. Short interest has decreased by 11.44% compared with the prior settlement. At the current average daily volume, covering all open short positions would take about 4.79 days (days to cover).
Frequently asked questions
What is the current short interest in BFLY?
As of the latest FINRA settlement dated September 30, 2026, BFLY had approximately 31,641,985 shares sold short. Short interest data is reported by FINRA twice per month.
How much does it cost to short BFLY?
The latest borrow fee (cost to borrow) for BFLY is 0.33% per year, based on IBKR data. Fees can change throughout the trading day as shares are borrowed and returned.
What is the days to cover ratio for BFLY?
Days to cover for BFLY is approximately 4.79 days. This estimates how many trading days it would take short sellers to buy back all outstanding short shares at the current average daily volume.
How many BFLY shares failed to deliver?
On September 30, 2026, the latest settlement date in the SEC's fails-to-deliver data, 600 shares of BFLY had failed to deliver, worth about $5.46K at the prior day's close (under 0.01% of shares outstanding). That is the balance still outstanding that day, not new fails. Fails come from long sales and delivery delays as well as short sales.
Is BFLY a short squeeze candidate?
A squeeze needs shorts that are hard to close. BFLY trades about 6,603,349 shares a day and would take roughly 4.79 days to unwind current short positions, at a current borrow fee of 0.33%. Higher days-to-cover and a rising borrow fee together are the setup to watch; neither alone is enough.