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“When we own portions of outstanding businesses with outstanding managements, our favorite holding period is forever.”

— 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 two-decade holding period. Suppose such a “buy-and-hold” investor had looked into buying shares of DTE Energy Co (NYSE: DTE) back in 1999. Let’s take a look at how such an investment would have worked out for that buy-and-hold investor:

Start date: 09/17/1999
$10,000

09/17/1999
$83,225

09/16/2019
End date: 09/16/2019
Start price/share: $38.12
End price/share: $130.05
Starting shares: 262.30
Ending shares: 639.98
Dividends reinvested/share: $49.19
Total return: 732.29%
Average annual return: 11.17%
Starting investment: $10,000.00
Ending investment: $83,225.44

The above analysis shows the two-decade investment result worked out quite well, with an annualized rate of return of 11.17%. This would have turned a $10K investment made 20 years ago into $83,225.44 today (as of 09/16/2019). On a total return basis, that’s a result of 732.29% (something to think about: how might DTE shares perform over the next 20 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Many investors out there refuse to own any stock that lacks a dividend; in the case of DTE Energy Co, investors have received $49.19/share in dividends these past 20 years examined in the exercise above. This means total return was driven not just by share price, but also by the dividends received (and what the investor did with those dividends). For this exercise, what we’ve done with the dividends is to assume they are reinvestted — i.e. used to purchase additional shares (the calculations use closing price on ex-date).

Based upon the most recent annualized dividend rate of 3.78/share, we calculate that DTE has a current yield of approximately 2.91%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 3.78 against the original $38.12/share purchase price. This works out to a yield on cost of 7.63%.

Another great investment quote to think about:
“October is one of the peculiarly dangerous months to speculate in stocks. The others are July, January, September, April, November, May, March, June, December, August and February.” — Mark Twain