Wall Street RegretsThe regret calculator.

What if you'd held QNST?

A $1,000 investment in QuinStreet, Inc. (QNST) at the month-end close of 2010-02 would be worth $1,442 at the close of 2026-08 — +44.2% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $6,979.

$1,000 since 2010$1,442Total return+44.2%Multiple1.4×CAGR+2.2%

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$1,442Gain+$442 (+44.2%)Multiple1.4×CAGR+2.2%

    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.

    2010$1,4422011$1,0962012$2,2502013$3,1342014$2,4232015$3,4702016$4,9092017$5,6012018$2,5132019$1,2982020$1,3762021$9822022$1,1582023$1,4682024$1,6432025$9132026$1,466

    Every year, $1,000 from 2010

    YearValue of $1,000Year return
    2010$1,000
    2011$487-51.3%
    2012$350-28.2%
    2013$452+29.3%
    2014$316-30.1%
    2015$223-29.3%
    2016$196-12.4%
    2017$436+122.9%
    2018$845+93.7%
    2019$797-5.7%
    2020$1,116+40.0%
    2021$947-15.2%
    2022$747-21.1%
    2023$667-10.7%
    2024$1,201+80.0%
    2025$748-37.7%
    2026$1,096+46.6%

    Best and worst month-end to buy

    The best single month-end close to have bought QNST was 2016-10 ($2.90): $1,000 then is $7,262 today. The worst was 2021-02 ($23.89): $1,000 then is $882.

    FAQ

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

    A $1,000 investment in QuinStreet, Inc. (QNST) at the start of 2010 would be worth about $1,442 today, a total return of +44.2%. Dividends are reinvested in these figures.

    What were the best and worst years for QNST?

    QuinStreet, Inc. (QNST)'s strongest calendar year since 2010 was 2017, a +122.9% return — $1,000 held through that year became about $2,229 by year-end. Its weakest year was 2011, at -51.3%.

    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 QNST have grown?

    Investing $100 at the end of every month since 2010-02 would have grown to about $47,558 on $19,900 invested.

    Did QNST beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $6,979. QNST trailed the S&P 500 by +79.3% 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

    QuinStreet, Inc. (QNST) historical total-return data from 2010-02 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.