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“When we own portions of outstanding businesses with outstanding managements, our favorite holding period is forever.”

— Warren Buffett

Investors can learn a lot from Warren Buffett, whose above quote teaches the importance of thinking about investment time horizon, and asking ourselves before buying any given stock: can we envision holding onto it for years — even a two-decade holding period possibly?

Suppose a “buy-and-hold” investor was considering an investment into Aon plc (NYSE: AON) back in 2000: back then, such an investor may have been pondering this very same question. Had they answered “yes” to a full two-decade investment time horizon and then actually held for these past 20 years, here’s how that investment would have turned out.

Start date: 01/06/2000
$10,000

01/06/2000
$71,467

01/03/2020
End date: 01/03/2020
Start price/share: $40.62
End price/share: $207.97
Starting shares: 246.15
Ending shares: 343.83
Dividends reinvested/share: $17.60
Total return: 615.06%
Average annual return: 10.33%
Starting investment: $10,000.00
Ending investment: $71,467.12

As shown above, the two-decade investment result worked out quite well, with an annualized rate of return of 10.33%. This would have turned a $10K investment made 20 years ago into $71,467.12 today (as of 01/03/2020). On a total return basis, that’s a result of 615.06% (something to think about: how might AON shares perform over the next 20 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Aon plc paid investors a total of $17.60/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 1.76/share, we calculate that AON has a current yield of approximately 0.85%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 1.76 against the original $40.62/share purchase price. This works out to a yield on cost of 2.09%.

One more investment quote to leave you with:
“I made my money by selling too soon.” — Bernard Baruch