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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 Iron Mountain Inc (NYSE: IRM)? Today, we examine the outcome of a five year investment into the stock back in 2015.

Start date: 01/23/2015
$10,000

01/23/2015
$10,778

01/22/2020
End date: 01/22/2020
Start price/share: $40.75
End price/share: $31.76
Starting shares: 245.40
Ending shares: 339.34
Dividends reinvested/share: $10.98
Total return: 7.77%
Average annual return: 1.51%
Starting investment: $10,000.00
Ending investment: $10,778.15

As shown above, the five year investment result worked out as follows, with an annualized rate of return of 1.51%. This would have turned a $10K investment made 5 years ago into $10,778.15 today (as of 01/22/2020). On a total return basis, that’s a result of 7.77% (something to think about: how might IRM shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Iron Mountain Inc paid investors a total of $10.98/share in dividends over the 5 holding period, marking a second component of the total return beyond share price change alone. Much like watering a tree, reinvesting dividends can help an investment to grow over time — for the above calculations we assume dividend reinvestment (and for this exercise the closing price on ex-date is used for the reinvestment of a given dividend).

Based upon the most recent annualized dividend rate of 2.474/share, we calculate that IRM has a current yield of approximately 7.79%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 2.474 against the original $40.75/share purchase price. This works out to a yield on cost of 19.12%.

More investment wisdom to ponder:
“Cash is a fact, profit is an opinion.” — Alfred Rappaport