Massivemarkets

MRCY

Mercury Systems Inc.

Nasdaq · usd

$79.71+4.84 (+6.46%)
At close · 15-minute delayed
$75.00-4.71 (-5.91%)
As of 4:21:38 PM EDT on Oct 26, 2026 · After hours

Mercury Systems Inc. (MRCY) trades at $79.71 (+6.46%) as of 4:21:38 PM EDT on Oct 26, 2026, -4.06% over the past month. Market cap is $4.56B, with 7.4 days to cover in short interest.

Stock performance

How Mercury Systems Inc. (MRCY) stock has performed from one day to one year, with its 52-week range.

+4.46%
+$3.40 over 1D
$75.62$77.09$78.55$80.019:30 AM11:10 AM12:50 PM2:30 PM4:05 PM$79.71
1D
+5.30%
1W
+3.75%
1M
-4.06%
YTD
+7.99%
1Y
+0.37%
52-wk range
$65.04 – $128.45

Key statistics

Today's trading snapshot for MRCY: day range, open, previous close, volume and market cap.

Day range
$74.91 – $80.50
Open
$75.68
Prev close
$74.87
Volume
621.59K
Market cap
$4.56B
Shares out
60.86M

Valuation and profitability ratios: P/E, P/S, ROE

Valuation and profitability ratios for Mercury Systems Inc.: P/E, P/S, P/B, ROE and more.

P/E
—
P/S
4.63
P/B
3.04
P/FCF
66.93
ROE
-2.0%
ROA
-1.3%
Debt/Equity
0.29
Div yield
0.00%

As of Oct 23, 2026

8-K filings

Material corporate events Mercury Systems Inc. has disclosed to the SEC on Form 8-K.

  • Settlement agreementSep 18, 2026

    On September 9, 2026 and September 15, 2026, the Essex County Superior Court for the Commonwealth of Massachusetts (the "Court") entered orders granting preliminary approval of the proposed settlement of the stockholder derivative actions captioned Jones v. Aslett, et al. and McKinnon vs. Aslett, et al. (collectively, the "Settled Matters"). The parties to the Settled Matters agreed to a settlement to resolve these matters on July 9, 2026.

  • On September 16, 2026, the Company issued a press release that announced the extension of Mr. Ballhaus's employment agreement to August 15, 2030, and reaffirmed the financial guidance issued on the Company's earnings call on August 18, 2026.

  • Credit facilityNov 4, 2025

    Amendment No. 7 provides for (1) a new five-year revolving credit facility maturing on November 4, 2030 with $850.0 million in commitments; (2) the paydown of extensions of credit, and termination of commitments, under the Company's existing $900.0 million revolving credit facility.

  • Annual meeting resultsOct 28, 2025

    At the 2025 Annual Meeting, Ms. Bua was elected as a Class II Director for a one-year term ending in 2026, at which time all the Class II Directors will be up for re-election for a three-year term.

  • Executive compensation changeApr 1, 2025

    In connection with Mr. Farnsworth's expanded role, he will be granted a restricted stock unit award with a grant date value of $1,000,000 under the Company's 2018 Stock Incentive Plan. The number of shares of the Company's common stock underlying the award will be determined by dividing the grant date value by the average closing price of the Company's common stock during the 30 calendar days prior to April 15, 2025, the grant date.

MRCY short interest

How heavily MRCY is shorted: shares short, days to cover and average daily volume.

Days to cover
7.4
Short interest
5.01M
Avg volume
678.67K

As of · reported to FINRA twice monthly.

MRCY news

The latest news and headlines about Mercury Systems Inc. (MRCY).

Frequently asked questions

What is the Mercury Systems Inc. (MRCY) stock price today?

Mercury Systems Inc. (MRCY) is trading at $79.71 (+6.46% on the day) as of 4:21:38 PM EDT on Oct 26, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.

What is Mercury Systems Inc.?

Mercury Systems Inc is a commercial technology company serving the aerospace and defense industry. The company envisions, creates, and delivers secure open architecture solutions powering a broad range of mission-critical applications in challenging and demanding environments.

What is the short interest in MRCY?

As of Sep 30, 2026, MRCY has 5.01M shares short and 7.4 days to cover.

What exchange is MRCY listed on?

Mercury Systems Inc. (MRCY) trades on Nasdaq in USD, in the ELECTRONIC COMPONENTS & ACCESSORIES industry.

Build with AI

Build an analysis of MRCY with your agent

Point Claude or ChatGPT at the Massive MCP server and recreate this page from live data.

Connect the Massive MCP server (API reference: massive.com/docs/llms.txt) and build a MRCY analysis: the latest quote, key ratios (P/E, P/S, ROE), short interest, recent insider activity and the latest news.

Live market data from the Massive API and MCP.Get a free API key

Nothing on this page is investment advice. All data and content is provided for informational purposes under our Terms of Service.