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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

The Warren Buffett investment philosophy calls for a long-term investment horizon, where a five year holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Biogen Inc (NASD: BIIB)? Today, we examine the outcome of a five year investment into the stock back in 2014.

Start date: 09/12/2014
$10,000

09/12/2014
$7,296

09/11/2019
End date: 09/11/2019
Start price/share: $323.39
End price/share: $235.96
Starting shares: 30.92
Ending shares: 30.92
Dividends reinvested/share: $0.00
Total return: -27.04%
Average annual return: -6.11%
Starting investment: $10,000.00
Ending investment: $7,296.20

As we can see, the five year investment result worked out poorly, with an annualized rate of return of -6.11%. This would have turned a $10K investment made 5 years ago into $7,296.20 today (as of 09/11/2019). On a total return basis, that’s a result of -27.04% (something to think about: how might BIIB shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Here’s one more great investment quote before you go:
“Calling someone who trades actively in the market an investor is like calling someone who repeatedly engages in one-night stands a romantic.” — Warren Buffett