“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 longterm investment horizon, where a ten 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 ten year investment into the stock back in 2010.
Start date:  11/08/2010 


End date:  11/05/2020  
Start price/share:  $74.84  
End price/share:  $15.52  
Starting shares:  133.62  
Ending shares:  172.99  
Dividends reinvested/share:  $15.91  
Total return:  73.15%  
Average annual return:  12.32%  
Starting investment:  $10,000.00  
Ending investment:  $2,685.38 
The above analysis shows the ten year investment result worked out poorly, with an annualized rate of return of 12.32%. This would have turned a $10K investment made 10 years ago into $2,685.38 today (as of 11/05/2020). On a total return basis, that’s a result of 73.15% (something to think about: how might SLB shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]
Notice that Schlumberger Ltd paid investors a total of $15.91/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 exdate is used for the reinvestment of a given dividend).
Based upon the most recent annualized dividend rate of .5/share, we calculate that SLB has a current yield of approximately 3.22%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of .5 against the original $74.84/share purchase price. This works out to a yield on cost of 4.30%.
One more piece of investment wisdom to leave you with:
“If you are not willing to own a stock for 10 years, do not even think about owning it for 10 minutes.” — Warren Buffett