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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

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 five year 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 5 years to 2015, investors considering an investment into shares of American Tower Corp (NYSE: AMT) may have been pondering this very question and thinking about their potential investment result over a full five year time horizon. Here’s how that would have worked out.

Start date: 04/02/2015
$10,000

04/02/2015
$23,595

04/01/2020
End date: 04/01/2020
Start price/share: $96.78
End price/share: $206.97
Starting shares: 103.33
Ending shares: 114.02
Dividends reinvested/share: $13.53
Total return: 135.99%
Average annual return: 18.72%
Starting investment: $10,000.00
Ending investment: $23,595.20

The above analysis shows the five year investment result worked out exceptionally well, with an annualized rate of return of 18.72%. This would have turned a $10K investment made 5 years ago into $23,595.20 today (as of 04/01/2020). On a total return basis, that’s a result of 135.99% (something to think about: how might AMT 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 American Tower Corp has paid $13.53/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 4.32/share, we calculate that AMT has a current yield of approximately 2.09%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 4.32 against the original $96.78/share purchase price. This works out to a yield on cost of 2.16%.

One more piece of investment wisdom to leave you with:
“I make no attempt to forecast the market; my efforts are devoted to finding undervalued securities.” — Warren Buffett