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

— Warren Buffett

The Warren Buffett investment philosophy calls for a long-term investment horizon, where a two-decade holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Pinnacle West Capital Corp (NYSE: PNW)? Today, we examine the outcome of a two-decade investment into the stock back in 2002.

Start date: 09/20/2002


End date: 09/19/2022
Start price/share: $29.00
End price/share: $74.69
Starting shares: 344.83
Ending shares: 840.72
Dividends reinvested/share: $47.54
Total return: 527.94%
Average annual return: 9.62%
Starting investment: $10,000.00
Ending investment: $62,839.56

As we can see, the two-decade investment result worked out well, with an annualized rate of return of 9.62%. This would have turned a $10K investment made 20 years ago into $62,839.56 today (as of 09/19/2022). On a total return basis, that’s a result of 527.94% (something to think about: how might PNW shares perform over the next 20 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Pinnacle West Capital Corp paid investors a total of $47.54/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 3.4/share, we calculate that PNW has a current yield of approximately 4.55%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 3.4 against the original $29.00/share purchase price. This works out to a yield on cost of 15.69%.

Here’s one more great investment quote before you go:
“Investors should always keep in mind that the most important metric is not the returns achieved but the returns weighed against the risks incurred. Ultimately, nothing should be more important to investors than the ability to sleep soundly at night.” — Seth Klarman