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Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
MERCURY SYSTEMS INC closed at $73.55 on Nov 6, 2026, −11.2% over 1 month, −0.7% over 1 year.
If you had invested $1,000 1 month ago, it would be worth $888 today (−11.2%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved −5.7%, while this stock moved −11.2%.
| Date | Close | Change | % Change |
|---|---|---|---|
| Nov 6 (Fri) | $73.55 | +8.00 | +12.20% |
| Nov 5 (Thu) | $65.55 | −6.21 | −8.65% |
| Nov 4 (Wed) | $71.76 | −8.56 | −10.66% |
| Nov 3 (Tue) | $80.32 | +2.95 | +3.81% |
| Nov 2 (Mon) | $77.37 | −0.17 | −0.22% |
| Oct 30 (Fri) | $77.54 | −4.26 | −5.21% |
| Oct 29 (Thu) | $81.80 | +3.22 | +4.10% |
| Oct 28 (Wed) | $78.58 | +0.03 | +0.04% |
| Oct 27 (Tue) | $78.55 | −1.16 | −1.46% |
| Oct 26 (Mon) | $79.71 | +4.84 | +6.46% |
If you had invested $1,000 3 months ago, it would be worth $676 today (−32.4%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved −4.3%, while this stock moved −32.4%.
| Date | Close | Change | % Change |
|---|---|---|---|
| Nov 6 (Fri) | $73.55 | +8.00 | +12.20% |
| Nov 5 (Thu) | $65.55 | −6.21 | −8.65% |
| Nov 4 (Wed) | $71.76 | −8.56 | −10.66% |
| Nov 3 (Tue) | $80.32 | +2.95 | +3.81% |
| Nov 2 (Mon) | $77.37 | −0.17 | −0.22% |
| Oct 30 (Fri) | $77.54 | −4.26 | −5.21% |
| Oct 29 (Thu) | $81.80 | +3.22 | +4.10% |
| Oct 28 (Wed) | $78.58 | +0.03 | +0.04% |
| Oct 27 (Tue) | $78.55 | −1.16 | −1.46% |
| Oct 26 (Mon) | $79.71 | +4.84 | +6.46% |
If you had invested $1,000 6 months ago, it would be worth $802 today (−19.8%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +0.2%, while this stock moved −19.8%.
| Month | Month-End Close | Monthly % |
|---|---|---|
| Nov 2026 | $73.55 | −5.1% |
| Oct 2026 | $77.54 | −6.6% |
| Sep 2026 | $83.00 | −5.0% |
| Aug 2026 | $87.33 | −10.1% |
| Jul 2026 | $97.10 | −20.6% |
| Jun 2026 | $122.33 | +9.5% |
| May 2026 | $111.70 | +41.6% |
If you had invested $1,000 1 year ago, it would be worth $993 today (−0.7%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +9.6%, while this stock moved −0.7%.
| Month | Month-End Close | Monthly % |
|---|---|---|
| Nov 2026 | $73.55 | −5.1% |
| Oct 2026 | $77.54 | −6.6% |
| Sep 2026 | $83.00 | −5.0% |
| Aug 2026 | $87.33 | −10.1% |
| Jul 2026 | $97.10 | −20.6% |
| Jun 2026 | $122.33 | +9.5% |
| May 2026 | $111.70 | +41.6% |
| Apr 2026 | $78.91 | +8.2% |
| Mar 2026 | $72.91 | −18.1% |
| Feb 2026 | $89.03 | −5.2% |
| Jan 2026 | $93.88 | +28.6% |
| Dec 2025 | $73.01 | +4.5% |
| Nov 2025 | $69.89 | ― |
If you had invested $1,000 3 years ago, it would be worth $2,273 today (+127.3%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +67.1%, while this stock moved +127.3%.
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | $73.55 | +0.7% |
| 2025 | $73.01 | ― |
If you had invested $1,000 5 years ago, it would be worth $1,425 today (+42.5%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +57.5%, while this stock moved +42.5%.
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | $73.55 | +0.7% |
| 2025 | $73.01 | ― |
If you had invested $1,000 in Feb 1998, it would be worth $9,685 today (+868.5%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +603.0%, while this stock moved +868.5%.
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | $73.55 | +0.7% |
| 2025 | $73.01 | +73.8% |
| 2024 | $42.00 | +14.8% |
| 2023 | $36.57 | −18.3% |
| 2022 | $44.74 | −18.7% |
| 2021 | $55.06 | −37.5% |
| 2020 | $88.06 | +27.4% |
| 2019 | $69.11 | +46.1% |
| 2018 | $47.29 | −7.9% |
| 2017 | $51.35 | +69.9% |
| 2016 | $30.22 | +64.6% |
| 2015 | $18.36 | +31.9% |
| 2014 | $13.92 | +27.1% |
| 2013 | $10.95 | +19.0% |
| 2012 | $9.20 | −30.8% |
| 2011 | $13.29 | −27.7% |
| 2010 | $18.38 | +66.9% |
| 2009 | $11.01 | +74.5% |
| 2008 | $6.31 | −60.8% |
| 2007 | $16.11 | +20.6% |
| 2006 | $13.36 | −35.2% |
| 2005 | $20.63 | −30.5% |
| 2004 | $29.68 | +19.2% |
| 2003 | $24.90 | −18.4% |
| 2002 | $30.52 | −22.0% |
| 2001 | $39.11 | −15.8% |
| 2000 | $46.44 | +32.7% |
| 1999 | $35.00 | +148.9% |
| 1998 | $14.06 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Feb 1998). Please check the latest prices before trading.
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