Wall Street RegretsThe regret calculator.

What if you'd held SRPT?

A $1,000 investment in Sarepta Therapeutics, Inc. (SRPT) at the month-end close of 1997-06 would be worth $462 at the close of 2026-08 — -53.8% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $8,708.

$1,000 since 1997$462Total return-53.8%Multiple0.46×CAGR-2.6%

Your scenario

Dates resolve to the nearest month-end close.
Leave empty for "held until today".
Invested at each month-end. Starts on the buy date.

Result

Worth$462Gain+$-538 (-53.8%)Multiple0.5×CAGR-2.6%

    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.

    2000$6052001$6922002$3012003$6582004$8082005$1,3992006$9532007$1,0342008$2,3322009$4,9822010$2,2522011$1,5512012$4,3842013$7652014$9692015$1,3642016$5112017$7192018$3552019$1812020$1532021$1162022$2192023$1522024$2052025$1622026$917

    Every year, $1,000 from 1997

    YearValue of $1,000Year return
    1997$1,000
    1998$587-41.3%
    1999$798+36.0%
    2000$697-12.7%
    2001$1,601+129.7%
    2002$734-54.2%
    2003$597-18.6%
    2004$345-42.3%
    2005$506+46.8%
    2006$467-7.8%
    2007$207-55.7%
    2008$96.87-53.2%
    2009$214+121.2%
    2010$311+45.2%
    2011$110-64.6%
    2012$631+473.3%
    2013$498-21.0%
    2014$354-29.0%
    2015$944+166.6%
    2016$671-28.9%
    2017$1,361+102.8%
    2018$2,670+96.1%
    2019$3,157+18.2%
    2020$4,170+32.1%
    2021$2,203-47.2%
    2022$3,170+43.9%
    2023$2,359-25.6%
    2024$2,974+26.1%
    2025$526-82.3%
    2026$483-8.3%

    Best and worst month-end to buy

    The best single month-end close to have bought SRPT was 2009-02 ($3.60): $1,000 then is $5,481 today. The worst was 2020-12 ($170): $1,000 then is $116.

    FAQ

    What would $1,000 in SRPT be worth today?

    A $1,000 investment in Sarepta Therapeutics, Inc. (SRPT) at the start of 1997 would be worth about $462 today, a total return of -53.8%. Dividends are reinvested in these figures.

    What were the best and worst years for SRPT?

    Sarepta Therapeutics, Inc. (SRPT)'s strongest calendar year since 1997 was 2012, a +473.3% return — $1,000 held through that year became about $5,733 by year-end. Its weakest year was 2025, at -82.3%.

    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 SRPT have grown?

    Investing $100 at the end of every month since 1997-06 would have grown to about $34,011 on $35,100 invested.

    Did SRPT beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $8,708. SRPT trailed the S&P 500 by +94.7% 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

    Sarepta Therapeutics, Inc. (SRPT) historical total-return data from 1997-06 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.

    Full methodology →

    What if you'd held…

    Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.