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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

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 five year holding period possibly?

Suppose a “buy-and-hold” investor was considering an investment into Comerica, Inc. (NYSE: CMA) back in 2015: back then, such an investor may have been pondering this very same question. Had they answered “yes” to a full five year investment time horizon and then actually held for these past 5 years, here’s how that investment would have turned out.

Start date: 02/05/2015
$10,000

02/05/2015
$15,713

02/04/2020
End date: 02/04/2020
Start price/share: $44.73
End price/share: $62.90
Starting shares: 223.56
Ending shares: 249.80
Dividends reinvested/share: $7.33
Total return: 57.12%
Average annual return: 9.46%
Starting investment: $10,000.00
Ending investment: $15,713.66

As we can see, the five year investment result worked out well, with an annualized rate of return of 9.46%. This would have turned a $10K investment made 5 years ago into $15,713.66 today (as of 02/04/2020). On a total return basis, that’s a result of 57.12% (something to think about: how might CMA shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Comerica, Inc. paid investors a total of $7.33/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 2.72/share, we calculate that CMA has a current yield of approximately 4.32%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 2.72 against the original $44.73/share purchase price. This works out to a yield on cost of 9.66%.

One more piece of investment wisdom to leave you with:
“In the end, how your investments behave is much less important than how you behave.” — Benjamin Graham