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“Someone’s sitting in the shade today because someone planted a tree a long time ago.”

— 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 Marathon Oil Corp. (NYSE: MRO) back in 2004: 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: 09/17/2004
$10,000

09/17/2004
  $34,344

09/16/2024
End date: 09/16/2024
Start price/share: $11.54
End price/share: $26.66
Starting shares: 866.55
Ending shares: 1,287.92
Dividends reinvested/share: $8.79
Total return: 243.36%
Average annual return: 6.36%
Starting investment: $10,000.00
Ending investment: $34,344.72

As shown above, the two-decade investment result worked out well, with an annualized rate of return of 6.36%. This would have turned a $10K investment made 20 years ago into $34,344.72 today (as of 09/16/2024). On a total return basis, that’s a result of 243.36% (something to think about: how might MRO shares perform over the next 20 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Marathon Oil Corp. paid investors a total of $8.79/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 .44/share, we calculate that MRO has a current yield of approximately 1.65%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of .44 against the original $11.54/share purchase price. This works out to a yield on cost of 14.30%.

One more piece of investment wisdom to leave you with:
“The investor’s chief problem, even his worst enemy, is likely to be himself.” — Benjamin Graham