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“I buy on the assumption that they could close the market the next day and not reopen it for five years.”

— Warren Buffett

Investors can learn a lot from Warren Buffett, whose above quote teaches the importance of thinking about investment time horizon, and asking ourselves before buying any given stock: can we envision holding onto it for years — even a five year holding period possibly?

Suppose a “buy-and-hold” investor was considering an investment into O’Reilly Automotive, Inc. (NASD: ORLY) back in 2015: back then, such an investor may have been pondering this very same question. Had they answered “yes” to a full five year investment time horizon and then actually held for these past 5 years, here’s how that investment would have turned out.

Start date: 05/04/2015
$10,000

05/04/2015
$16,891

05/01/2020
End date: 05/01/2020
Start price/share: $222.79
End price/share: $376.37
Starting shares: 44.89
Ending shares: 44.89
Dividends reinvested/share: $0.00
Total return: 68.93%
Average annual return: 11.06%
Starting investment: $10,000.00
Ending investment: $16,891.32

As shown above, the five year investment result worked out quite well, with an annualized rate of return of 11.06%. This would have turned a $10K investment made 5 years ago into $16,891.32 today (as of 05/01/2020). On a total return basis, that’s a result of 68.93% (something to think about: how might ORLY shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

One more piece of investment wisdom to leave you with:
“Buy not on optimism, but on arithmetic.” — Benjamin Graham