Wall Street RegretsThe regret calculator.

What if you'd held ORLY?

A $1,000 investment in O'Reilly Automotive, Inc. (ORLY) at the month-end close of 2016-12 would be worth $4,808 at the close on 2026-10-16: a +380.8% price return. Through September 2026, the latest month the fund has reported, the same $1,000 became $4,600 in ORLY and $3,999 in an S&P 500 index fund (TSP C Fund). The fund figure includes reinvested dividends; the stock figure does not, so the comparison favors the fund.

$1,000 since 2016$4,808Price return+380.8%Multiple4.8×CAGR+17.3%

Your scenario

Dates resolve to the last close of the month they fall in.
Leave empty for "held until today".
Added at the last close of each month from the buy month on.

Result

Worth$4,808Gain+$3,808 (+380.8%)Multiple4.8×CAGR+17.3%

    If you'd bought $1,000 at the start of each year

    Value of $1,000 invested on January 1 of each year and held to the latest close.

    2016$4,8082017$4,8082018$5,5662019$3,9072020$3,0552021$2,9592022$1,8962023$1,5872024$1,4092025$1,1292026$979

    Every year, $1,000 from 2016

    YearValue of $1,000Year return
    2016$1,000—
    2017$864-13.6%
    2018$1,230+42.5%
    2019$1,574+27.9%
    2020$1,625+3.3%
    2021$2,536+56.1%
    2022$3,029+19.4%
    2023$3,412+12.7%
    2024$4,259+24.8%
    2025$4,911+15.3%
    2026$4,808-2.1%

    Best and worst month to buy

    The best month to have bought ORLY was 2017-08, at a close of $13.07: $1,000 then is $6,831 today. The worst was 2025-09, at $108: $1,000 then is $828.

    FAQ

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

    About $4,808 at the latest close, a price return of +380.8%. That is $1,000 put into ORLY at the 2016-12 month-end close, the first in this price history.

    What were the best and worst years for ORLY?

    ORLY's best calendar year since 2016 was 2021, with a +56.1% return: $1,000 invested at the start of that year became about $1,561. Its worst year was 2017, at -13.6%.

    Does the calculator include dividends and splits?

    Splits only. Price return: adjusted for stock splits, dividends not included. Prices are split-adjusted automatically; a ticker whose history we could not adjust with confidence starts later or is not shown.

    How much would $100 per month in ORLY have grown?

    To about $31,461 from $11,900 invested, putting in $100 at every monthly close since 2016-12.

    Did ORLY beat the S&P 500?

    Yes. From the December 2016 month-end through September 2026, ORLY beat an S&P 500 index fund by 15.0%: $1,000 in the fund (the TSP C Fund, dividends included) became $3,999, and $1,000 in ORLY (price only) became $4,600. The fund's monthly returns are published at tsp.gov.

    Is this investment advice?

    No. Wall Street Regrets is an entertainment and education tool. Every number here is a historical calculation, and past performance never guarantees future results.

    Methodology

    The figures on this page use ORLY's historical price data from 2016-12 to 2026-10. The tables and the calculator above use month-end closes.

    Prices come from IEX Historical Data. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest close. Amounts in other currencies are converted at month-end exchange rates published by the European Central Bank and, for earlier years, the Federal Reserve: into US dollars at the buy date's rate and back at the sell date's rate, so the return includes the currency move.

    Prices are the last regular-session trade on IEX (Investors Exchange) each day, which can differ slightly from the official close. Month-end closes miss the highs and lows inside a month. Figures ignore taxes, fees and the currency effects of non-USD listings.

    Full methodology →

    What if you'd held…

    Prices as of the last IEX trade on 2026-10-16. Data delayed end-of-day.