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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 2018.

Start date: 04/12/2018
$10,000

04/12/2018
  $22,368

04/11/2023
End date: 04/11/2023
Start price/share: $33.16
End price/share: $53.48
Starting shares: 301.57
Ending shares: 418.19
Dividends reinvested/share: $12.29
Total return: 123.65%
Average annual return: 17.47%
Starting investment: $10,000.00
Ending investment: $22,368.40

As shown above, the five year investment result worked out exceptionally well, with an annualized rate of return of 17.47%. This would have turned a $10K investment made 5 years ago into $22,368.40 today (as of 04/11/2023). On a total return basis, that’s a result of 123.65% (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.]

Dividends are always an important investment factor to consider, and Iron Mountain Inc has paid $12.29/share in dividends to shareholders over the past 5 years we looked at above. Many an investor will only invest in stocks that pay dividends, so this component of total return is always an important consideration. Automated reinvestment of dividends into additional shares of stock can be a great way for an investor to compound their returns. The above calculations are done with the assuption that dividends received over time are reinvested (the calcuations use the closing price on ex-date).

Based upon the most recent annualized dividend rate of 2.474/share, we calculate that IRM has a current yield of approximately 4.63%. 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 $33.16/share purchase price. This works out to a yield on cost of 13.96%.

More investment wisdom to ponder:
“The most important three words in investing is: “I don’t know.” If someone doesn’t say that to you then they are lying.” — James Altucher