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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

The Warren Buffett investment philosophy calls for a long-term investment horizon, where a five year holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Micron Technology Inc. (NASD: MU)? Today, we examine the outcome of a five year investment into the stock back in 2020.

Start date: 01/08/2020
$10,000

01/08/2020
  $18,098

01/07/2025
End date: 01/07/2025
Start price/share: $57.52
End price/share: $101.91
Starting shares: 173.85
Ending shares: 177.62
Dividends reinvested/share: $1.56
Total return: 81.01%
Average annual return: 12.59%
Starting investment: $10,000.00
Ending investment: $18,098.40

As we can see, the five year investment result worked out quite well, with an annualized rate of return of 12.59%. This would have turned a $10K investment made 5 years ago into $18,098.40 today (as of 01/07/2025). On a total return basis, that’s a result of 81.01% (something to think about: how might MU shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Micron Technology Inc. paid investors a total of $1.56/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 .46/share, we calculate that MU 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 .46 against the original $57.52/share purchase price. This works out to a yield on cost of 0.78%.

More investment wisdom to ponder:
“Spend each day trying to be a little wiser than you were when you woke up.” — Charlie Munger