Wall Street RegretsThe regret calculator.

What if you'd held OMER?

A $1,000 investment in Omeros Corporation (OMER) at the month-end close of 2009-10 would be worth $3,406 at the close of 2026-08 — +240.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $7,439.

$1,000 since 2009$3,406Total return+240.6%Multiple3.4×CAGR+7.6%

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$3,406Gain+$2,406 (+240.6%)Multiple3.4×CAGR+7.6%

    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.

    2009$3,4062010$2,6202011$2,2322012$4,6562013$3,5432014$1,6292015$7422016$1,1692017$1,8542018$9462019$1,6512020$1,3052021$1,2872022$2,8602023$8,1372024$5,6242025$1,8612026$1,070

    Every year, $1,000 from 2009

    YearValue of $1,000Year return
    2009$1,000
    2010$1,174+17.4%
    2011$563-52.1%
    2012$739+31.4%
    2013$1,608+117.5%
    2014$3,530+119.5%
    2015$2,241-36.5%
    2016$1,413-36.9%
    2017$2,768+95.9%
    2018$1,587-42.7%
    2019$2,007+26.5%
    2020$2,036+1.4%
    2021$916-55.0%
    2022$322-64.9%
    2023$466+44.7%
    2024$1,407+202.1%
    2025$2,447+73.9%
    2026$2,620+7.0%

    Best and worst month-end to buy

    The best single month-end close to have bought OMER was 2023-10 ($1.19): $1,000 then is $15,454 today. The worst was 2018-08 ($25.88): $1,000 then is $711.

    FAQ

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

    A $1,000 investment in Omeros Corporation (OMER) at the start of 2009 would be worth about $3,406 today, a total return of +240.6%. Dividends are reinvested in these figures.

    What were the best and worst years for OMER?

    Omeros Corporation (OMER)'s strongest calendar year since 2009 was 2024, a +202.1% return — $1,000 held through that year became about $3,021 by year-end. Its weakest year was 2022, at -64.9%.

    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 OMER have grown?

    Investing $100 at the end of every month since 2009-10 would have grown to about $51,856 on $20,300 invested.

    Did OMER beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $7,439. OMER trailed the S&P 500 by +54.2% 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

    Omeros Corporation (OMER) historical total-return data from 2009-10 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.