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“I buy on the assumption that they could close the market the next day and not reopen it for five years.”

— Warren Buffett

One of the most important things investors can learn from Warren Buffett, is about how they approach their time horizon for an investment into a stock under consideration. Because immediately after buying shares of a given stock, investors will then be able to check on the day-to-day (and even minute-by-minute) market value. Some days the stock market will be up, other days down. These daily fluctuations can often distract from the long-term view. Today, we look at the result of a five year holding period for an investor who was considering Costco Wholesale Corp (NASD: COST) back in 2020, bought the stock, ignored the market’s ups and downs, and simply held through to today.

Start date: 02/24/2020
$10,000

02/24/2020
  $35,850

02/21/2025
End date: 02/21/2025
Start price/share: $313.62
End price/share: $1,035.03
Starting shares: 31.89
Ending shares: 34.63
Dividends reinvested/share: $43.28
Total return: 258.48%
Average annual return: 29.11%
Starting investment: $10,000.00
Ending investment: $35,850.52

As shown above, the five year investment result worked out exceptionally well, with an annualized rate of return of 29.11%. This would have turned a $10K investment made 5 years ago into $35,850.52 today (as of 02/21/2025). On a total return basis, that’s a result of 258.48% (something to think about: how might COST shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Costco Wholesale Corp paid investors a total of $43.28/share in dividends over the 5 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 4.64/share, we calculate that COST has a current yield of approximately 0.45%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 4.64 against the original $313.62/share purchase price. This works out to a yield on cost of 0.14%.

Another great investment quote to think about:
“I made my money by selling too soon.” — Bernard Baruch