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“Only buy something that you’d be perfectly happy to hold if the market shut down for 10 years.”

— Warren Buffett

The Warren Buffett investment philosophy calls for a long-term investment horizon, where a decade-long holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Marathon Oil Corp. (NYSE: MRO)? Today, we examine the outcome of a decade-long investment into the stock back in 2012.

Start date: 02/07/2012
$10,000

02/07/2012
$7,747

02/04/2022
End date: 02/04/2022
Start price/share: $33.16
End price/share: $21.50
Starting shares: 301.57
Ending shares: 360.41
Dividends reinvested/share: $3.94
Total return: -22.51%
Average annual return: -2.52%
Starting investment: $10,000.00
Ending investment: $7,747.39

As shown above, the decade-long investment result worked out poorly, with an annualized rate of return of -2.52%. This would have turned a $10K investment made 10 years ago into $7,747.39 today (as of 02/04/2022). On a total return basis, that’s a result of -22.51% (something to think about: how might MRO shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Marathon Oil Corp. paid investors a total of $3.94/share in dividends over the 10 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 .28/share, we calculate that MRO has a current yield of approximately 1.30%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of .28 against the original $33.16/share purchase price. This works out to a yield on cost of 3.92%.

More investment wisdom to ponder:
“You’ve got to be careful if you don’t know where you’re going, ’cause you might not get there.” — Yogi Berra