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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 above quote from Warren Buffett is timeless, and brings into focus the choice about time horizon that any investor should think about before buying a stock they are considering. Behind every stock is an actual business; what will that business look like over a five year period?

Today, let’s look backwards in time to 2016, and take a look at what happened to investors who asked that very question about Quest Diagnostics, Inc. (NYSE: DGX), by taking a look at the investment outcome over a five year holding period.

Start date: 04/14/2016
$10,000

04/14/2016
$19,195

04/13/2021
End date: 04/13/2021
Start price/share: $73.95
End price/share: $128.39
Starting shares: 135.23
Ending shares: 149.48
Dividends reinvested/share: $10.06
Total return: 91.91%
Average annual return: 13.93%
Starting investment: $10,000.00
Ending investment: $19,195.10

As shown above, the five year investment result worked out quite well, with an annualized rate of return of 13.93%. This would have turned a $10K investment made 5 years ago into $19,195.10 today (as of 04/13/2021). On a total return basis, that’s a result of 91.91% (something to think about: how might DGX shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Quest Diagnostics, Inc. paid investors a total of $10.06/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 2.48/share, we calculate that DGX has a current yield of approximately 1.93%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 2.48 against the original $73.95/share purchase price. This works out to a yield on cost of 2.61%.

One more piece of investment wisdom to leave you with:
“In trading you have to be defensive and aggressive at the same time. If you are not aggressive, you are not going to make money, and if you are not defensive, you are not going to keep money.” — Ray Dalio