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“Only buy something that you’d be perfectly happy to hold if the market shut down for 10 years.”

— Warren Buffett

The Warren Buffett investment philosophy calls for a long-term investment horizon, where a decade-long holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Charles River Laboratories International Inc. (NYSE: CRL)? Today, we examine the outcome of a decade-long investment into the stock back in 2015.

Start date: 05/01/2015
$10,000

05/01/2015
  $16,797

04/30/2025
End date: 04/30/2025
Start price/share: $70.62
End price/share: $118.62
Starting shares: 141.60
Ending shares: 141.60
Dividends reinvested/share: $0.00
Total return: 67.97%
Average annual return: 5.32%
Starting investment: $10,000.00
Ending investment: $16,797.00

As we can see, the decade-long investment result worked out well, with an annualized rate of return of 5.32%. This would have turned a $10K investment made 10 years ago into $16,797.00 today (as of 04/30/2025). On a total return basis, that’s a result of 67.97% (something to think about: how might CRL shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

One more piece of investment wisdom to leave you with:
“Know what you own and why you own it.” — Peter Lynch