Photo credit: commons.wikimedia.org

“Only buy something that you’d be perfectly happy to hold if the market shut down for 10 years.”

— 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 decade-long holding period possibly?

Suppose a “buy-and-hold” investor was considering an investment into Seagate Technology Holdings PLC (NASD: STX) back in 2015: back then, such an investor may have been pondering this very same question. Had they answered “yes” to a full decade-long investment time horizon and then actually held for these past 10 years, here’s how that investment would have turned out.

Start date: 04/29/2015
$10,000

04/29/2015
  $23,061

04/28/2025
End date: 04/28/2025
Start price/share: $58.17
End price/share: $82.16
Starting shares: 171.91
Ending shares: 280.72
Dividends reinvested/share: $26.28
Total return: 130.64%
Average annual return: 8.71%
Starting investment: $10,000.00
Ending investment: $23,061.83

The above analysis shows the decade-long investment result worked out well, with an annualized rate of return of 8.71%. This would have turned a $10K investment made 10 years ago into $23,061.83 today (as of 04/28/2025). On a total return basis, that’s a result of 130.64% (something to think about: how might STX shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Seagate Technology Holdings PLC paid investors a total of $26.28/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 ex-date is used for the reinvestment of a given dividend).

Based upon the most recent annualized dividend rate of 2.88/share, we calculate that STX has a current yield of approximately 3.50%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 2.88 against the original $58.17/share purchase price. This works out to a yield on cost of 6.02%.

More investment wisdom to ponder:
“Value investing requires a great deal of hard work, unusually strict discipline, and a long-term investment horizon. Few are willing and able to devote sufficient time and effort to become value investors, and only a fraction of those have the proper mind-set to succeed.” — Seth Klarman