About Mercury Systems Inc (MRCY) data

Data as of September 30, 2026.

Mercury Systems Inc (MRCY) has 5.01M shares sold short as of the latest FINRA settlement report on September 30, 2026. Short interest has decreased by 0.37% compared with the prior settlement. At the current average daily volume, covering all open short positions would take about 7.39 days (days to cover).

Frequently asked questions

What is the current short interest in MRCY?

As of the latest FINRA settlement dated September 30, 2026, MRCY had approximately 5,013,538 shares sold short. Short interest data is reported by FINRA twice per month.

How much does it cost to short MRCY?

The latest borrow fee (cost to borrow) for MRCY is 0.28% 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 MRCY?

Days to cover for MRCY is approximately 7.39 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.

Is MRCY a short squeeze candidate?

A squeeze needs shorts that are hard to close. MRCY trades about 678,670 shares a day and would take roughly 7.39 days to unwind current short positions, at a current borrow fee of 0.28%. Higher days-to-cover and a rising borrow fee together are the setup to watch; neither alone is enough.

Not investment advice. Past performance does not guarantee future results.

Welcome Back

Sign in to your account

or
Forgot password?

Create Account

or