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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 ten year holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Regeneron Pharmaceuticals, Inc. (NASD: REGN)? Today, we examine the outcome of a ten year investment into the stock back in 2011.

Start date: 02/28/2011


End date: 02/25/2021
Start price/share: $36.27
End price/share: $453.19
Starting shares: 275.71
Ending shares: 275.71
Dividends reinvested/share: $0.00
Total return: 1,149.49%
Average annual return: 28.73%
Starting investment: $10,000.00
Ending investment: $124,967.68

As we can see, the ten year investment result worked out exceptionally well, with an annualized rate of return of 28.73%. This would have turned a $10K investment made 10 years ago into $124,967.68 today (as of 02/25/2021). On a total return basis, that’s a result of 1,149.49% (something to think about: how might REGN shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

More investment wisdom to ponder:
“The most important quality for an investor is temperament, not intellect. You need a temperament that neither derives great pleasure from being with the crowd or against the crowd.” — Warren Buffett