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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

This inspiring quote from Warren Buffett teaches us the importance of considering our investment time horizon when approaching any given investment: Could we envision ourselves holding the stock we are considering for many years? Even a decade-long holding period potentially?

For “buy-and-hold” investors taking a long-term view, what’s important isn’t the short-term stock market fluctuations that will inevitably occur, but what happens over the long haul. Looking back 10 years to 2009, investors considering an investment into shares of Alexion Pharmaceuticals Inc. (NASD: ALXN) may have been pondering this very question and thinking about their potential investment result over a full decade-long time horizon. Here’s how that would have worked out.

Start date: 08/28/2009
$10,000

08/28/2009
$49,336

08/27/2019
End date: 08/27/2019
Start price/share: $22.33
End price/share: $110.16
Starting shares: 447.83
Ending shares: 447.83
Dividends reinvested/share: $0.00
Total return: 393.33%
Average annual return: 17.30%
Starting investment: $10,000.00
Ending investment: $49,336.69

The above analysis shows the decade-long investment result worked out exceptionally well, with an annualized rate of return of 17.30%. This would have turned a $10K investment made 10 years ago into $49,336.69 today (as of 08/27/2019). On a total return basis, that’s a result of 393.33% (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:
“If you’re looking for a home run, a great investment for five years or 10 years or more, then the only way to beat this enormous fog that covers the future is to identify a long-term trend that will give a particular business some sort of edge.” — Ralph Wanger