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“Someone’s sitting in the shade today because someone planted a tree a long time ago.”

— 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 two-decade 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 20 years to 2000, 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 two-decade time horizon. Here’s how that would have worked out.

Start date: 10/30/2000
$10,000

10/30/2000
$69,693

10/29/2020
End date: 10/29/2020
Start price/share: $39.00
End price/share: $231.65
Starting shares: 256.41
Ending shares: 301.03
Dividends reinvested/share: $20.60
Total return: 597.33%
Average annual return: 10.19%
Starting investment: $10,000.00
Ending investment: $69,693.14

As shown above, the two-decade investment result worked out quite well, with an annualized rate of return of 10.19%. This would have turned a $10K investment made 20 years ago into $69,693.14 today (as of 10/29/2020). On a total return basis, that’s a result of 597.33% (something to think about: how might AMT shares perform over the next 20 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that American Tower Corp paid investors a total of $20.60/share in dividends over the 20 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 4.56/share, we calculate that AMT has a current yield of approximately 1.97%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 4.56 against the original $39.00/share purchase price. This works out to a yield on cost of 5.05%.

One more piece of investment wisdom to leave you with:
“Games are won by players who focus on the playing field, not by those whose eyes are glued to the scoreboard.” — Warren Buffett