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

— Warren Buffett

The Warren Buffett investment philosophy calls for a long-term investment horizon, where a twenty year holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Schlumberger Ltd (NYSE: SLB)? Today, we examine the outcome of a twenty year investment into the stock back in 1999.

Start date: 10/25/1999
$10,000

10/25/1999
$18,636

10/24/2019
End date: 10/24/2019
Start price/share: $29.94
End price/share: $35.11
Starting shares: 334.00
Ending shares: 530.73
Dividends reinvested/share: $23.86
Total return: 86.34%
Average annual return: 3.16%
Starting investment: $10,000.00
Ending investment: $18,636.95

As we can see, the twenty year investment result worked out as follows, with an annualized rate of return of 3.16%. This would have turned a $10K investment made 20 years ago into $18,636.95 today (as of 10/24/2019). On a total return basis, that’s a result of 86.34% (something to think about: how might SLB shares perform over the next 20 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Beyond share price change, another component of SLB’s total return these past 20 years has been the payment by Schlumberger Ltd of $23.86/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/share, we calculate that SLB has a current yield of approximately 5.70%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 2 against the original $29.94/share purchase price. This works out to a yield on cost of 19.04%.

One more piece of investment wisdom to leave you with:
“The key to investing is not assessing how much an industry is going to affect society, or how much it will grow, but rather determining the competitive advantage of any given company and, above all, the durability of that advantage.” — Warren Buffett