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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 wisdom of Warren Buffett reflects a value-based philosophy about investing that says investors are buying shares in a business, and encourages strategic thinking about investment time horizon. Before placing a buy order for a stock, a great question we can ask is whether we would still be comfortable making the investment if we couldn’t sell it for many years?

A “buy-and-hold” approach may call for a time horizon that spans a long period of time — maybe even lasting for a ten year holding period. Suppose such a “buy-and-hold” investor had looked into buying shares of Marathon Petroleum Corp. (NYSE: MPC) back in 2011. Let’s take a look at how such an investment would have worked out for that buy-and-hold investor:

Start date: 09/14/2011


End date: 09/13/2021
Start price/share: $17.52
End price/share: $58.61
Starting shares: 570.78
Ending shares: 778.34
Dividends reinvested/share: $14.46
Total return: 356.19%
Average annual return: 16.38%
Starting investment: $10,000.00
Ending investment: $45,618.87

As we can see, the ten year investment result worked out exceptionally well, with an annualized rate of return of 16.38%. This would have turned a $10K investment made 10 years ago into $45,618.87 today (as of 09/13/2021). On a total return basis, that’s a result of 356.19% (something to think about: how might MPC shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Beyond share price change, another component of MPC’s total return these past 10 years has been the payment by Marathon Petroleum Corp. of $14.46/share in dividends to shareholders. Automatic reinvestment of dividends can be a wonderful way to compound returns, and for the above calculations we presume that dividends are reinvested into additional shares of stock. (For the purpose of these calcuations, the closing price on ex-date is used).

Based upon the most recent annualized dividend rate of 2.32/share, we calculate that MPC has a current yield of approximately 3.96%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 2.32 against the original $17.52/share purchase price. This works out to a yield on cost of 22.60%.

Another great investment quote to think about:
“I think you have to learn that there’s a company behind every stock, and that there’s only one real reason why stocks go up. Companies go from doing poorly to doing well or small companies grow to large companies.” — Peter Lynch