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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 Alexion Pharmaceuticals Inc. (NASD: ALXN)? Today, we examine the outcome of a decade-long investment into the stock back in 2010.

Start date: 01/25/2010
$10,000

01/25/2010
$48,212

01/22/2020
End date: 01/22/2020
Start price/share: $23.10
End price/share: $111.40
Starting shares: 432.90
Ending shares: 432.90
Dividends reinvested/share: $0.00
Total return: 382.25%
Average annual return: 17.04%
Starting investment: $10,000.00
Ending investment: $48,212.09

The above analysis shows the decade-long investment result worked out exceptionally well, with an annualized rate of return of 17.04%. This would have turned a $10K investment made 10 years ago into $48,212.09 today (as of 01/22/2020). On a total return basis, that’s a result of 382.25% (something to think about: how might ALXN shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Another great investment quote to think about:
“Every day that you’re not selling an asset in your portfolio, you’re choosing to buy it.” — Sam Zell