What if you'd held MRCY?
A $1,000 investment in Mercury Systems Inc (MRCY) at the month-end close of 1998-01 would be worth $16,865 at the close of 2026-08 — +1586.5% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $13,111.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-08, dividends included.
Every year, $1,000 from 1998
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1998 | $1,000 | — |
| 1999 | $2,489 | +148.9% |
| 2000 | $3,303 | +32.7% |
| 2001 | $2,782 | -15.8% |
| 2002 | $2,171 | -22.0% |
| 2003 | $1,771 | -18.4% |
| 2004 | $2,111 | +19.2% |
| 2005 | $1,467 | -30.5% |
| 2006 | $950 | -35.2% |
| 2007 | $1,146 | +20.6% |
| 2008 | $449 | -60.8% |
| 2009 | $783 | +74.5% |
| 2010 | $1,307 | +66.9% |
| 2011 | $945 | -27.7% |
| 2012 | $654 | -30.8% |
| 2013 | $779 | +19.0% |
| 2014 | $990 | +27.1% |
| 2015 | $1,306 | +31.9% |
| 2016 | $2,149 | +64.6% |
| 2017 | $3,652 | +69.9% |
| 2018 | $3,363 | -7.9% |
| 2019 | $4,915 | +46.1% |
| 2020 | $6,263 | +27.4% |
| 2021 | $3,916 | -37.5% |
| 2022 | $3,182 | -18.7% |
| 2023 | $2,601 | -18.3% |
| 2024 | $2,987 | +14.8% |
| 2025 | $5,193 | +73.8% |
| 2026 | $6,297 | +21.3% |
Best and worst month-end to buy
The best single month-end close to have bought MRCY was 2008-11 ($2.74): $1,000 then is $32,314 today. The worst was 2026-06 ($122): $1,000 then is $724.
FAQ
What would $1,000 in MRCY be worth today?
A $1,000 investment in Mercury Systems Inc (MRCY) at the start of 1998 would be worth about $16,865 today, a total return of +1586.5%. Dividends are reinvested in these figures.
What were the best and worst years for MRCY?
Mercury Systems Inc (MRCY)'s strongest calendar year since 1998 was 1999, a +148.9% return — $1,000 held through that year became about $2,489 by year-end. Its weakest year was 2008, at -60.8%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in MRCY have grown?
Investing $100 at the end of every month since 1998-01 would have grown to about $165,250 on $34,400 invested.
Did MRCY beat the S&P 500?
Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $13,111. MRCY beat the S&P 500 by +28.6% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
Mercury Systems Inc (MRCY) historical total-return data from 1998-01 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (EODHD): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via EODHD and Yahoo Finance. As of 2026-08. Not financial advice.