What if you'd held ALKS?
A $1,000 investment in Alkermes plc (ALKS) at the month-end close of 1991-07 would be worth $10,838 at the close of 2026-08 — +983.8% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $19,876.
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 1991
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1991 | $1,000 | — |
| 1992 | $472 | -52.8% |
| 1993 | $389 | -17.6% |
| 1994 | $118 | -69.7% |
| 1995 | $441 | +274.5% |
| 1996 | $1,292 | +192.9% |
| 1997 | $1,104 | -14.5% |
| 1998 | $1,232 | +11.6% |
| 1999 | $2,729 | +121.5% |
| 2000 | $3,487 | +27.8% |
| 2001 | $2,929 | -16.0% |
| 2002 | $697 | -76.2% |
| 2003 | $1,500 | +115.3% |
| 2004 | $1,566 | +4.4% |
| 2005 | $2,124 | +35.7% |
| 2006 | $1,486 | -30.1% |
| 2007 | $1,732 | +16.6% |
| 2008 | $1,183 | -31.7% |
| 2009 | $1,046 | -11.6% |
| 2010 | $1,364 | +30.5% |
| 2011 | $1,929 | +41.4% |
| 2012 | $2,058 | +6.7% |
| 2013 | $4,518 | +119.5% |
| 2014 | $6,507 | +44.0% |
| 2015 | $8,820 | +35.6% |
| 2016 | $6,176 | -30.0% |
| 2017 | $6,081 | -1.5% |
| 2018 | $3,279 | -46.1% |
| 2019 | $2,267 | -30.9% |
| 2020 | $2,217 | -2.2% |
| 2021 | $2,584 | +16.6% |
| 2022 | $2,903 | +12.3% |
| 2023 | $3,082 | +6.2% |
| 2024 | $3,196 | +3.7% |
| 2025 | $3,109 | -2.7% |
| 2026 | $5,576 | +79.3% |
Best and worst month-end to buy
The best single month-end close to have bought ALKS was 1994-12 ($1.06): $1,000 then is $47,340 today. The worst was 2000-02 ($95.94): $1,000 then is $523.
FAQ
What would $1,000 in ALKS be worth today?
A $1,000 investment in Alkermes plc (ALKS) at the start of 1991 would be worth about $10,838 today, a total return of +983.8%. Dividends are reinvested in these figures.
What were the best and worst years for ALKS?
Alkermes plc (ALKS)'s strongest calendar year since 1991 was 1995, a +274.5% return — $1,000 held through that year became about $3,745 by year-end. Its weakest year was 2002, at -76.2%.
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 ALKS have grown?
Investing $100 at the end of every month since 1991-07 would have grown to about $196,400 on $42,200 invested.
Did ALKS beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $19,876. ALKS trailed the S&P 500 by +45.5% 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
Alkermes plc (ALKS) historical total-return data from 1991-07 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices from Yahoo Finance historical data — adjusted for stock splits and reinvested dividends — the same convention used by major brokerages. 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 (Yahoo Finance): 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 Yahoo Finance. As of 2026-08. Not financial advice.