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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 Automatic Data Processing Inc. (NASD: ADP)? Today, we examine the outcome of a five year investment into the stock back in 2021.

Start date: 01/08/2021
$10,000

01/08/2021
  $16,941

01/07/2026
End date: 01/07/2026
Start price/share: $171.05
End price/share: $261.26
Starting shares: 58.46
Ending shares: 64.85
Dividends reinvested/share: $25.41
Total return: 69.43%
Average annual return: 11.12%
Starting investment: $10,000.00
Ending investment: $16,941.86

As we can see, the five year investment result worked out quite well, with an annualized rate of return of 11.12%. This would have turned a $10K investment made 5 years ago into $16,941.86 today (as of 01/07/2026). On a total return basis, that’s a result of 69.43% (something to think about: how might ADP shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Automatic Data Processing Inc. paid investors a total of $25.41/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 6.8/share, we calculate that ADP has a current yield of approximately 2.60%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 6.8 against the original $171.05/share purchase price. This works out to a yield on cost of 1.52%.

More investment wisdom to ponder:
“Games are won by players who focus on the playing field, not by those whose eyes are glued to the scoreboard.” — Warren Buffett