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“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 long-term investment horizon, where a decade-long holding period, or even longer, would fit right into the strategy. How would such a strategy have worked out for an investment into Simon Property Group, Inc. (NYSE: SPG)? Today, we examine the outcome of a decade-long investment into the stock back in 2015.

Start date: 06/26/2015
$10,000

06/26/2015
  $14,977

06/25/2025
End date: 06/25/2025
Start price/share: $173.91
End price/share: $157.40
Starting shares: 57.50
Ending shares: 95.14
Dividends reinvested/share: $71.50
Total return: 49.76%
Average annual return: 4.12%
Starting investment: $10,000.00
Ending investment: $14,977.44

The above analysis shows the decade-long investment result worked out as follows, with an annualized rate of return of 4.12%. This would have turned a $10K investment made 10 years ago into $14,977.44 today (as of 06/25/2025). On a total return basis, that’s a result of 49.76% (something to think about: how might SPG shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Simon Property Group, Inc. paid investors a total of $71.50/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 8.4/share, we calculate that SPG has a current yield of approximately 5.34%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 8.4 against the original $173.91/share purchase price. This works out to a yield on cost of 3.07%.

One more piece of investment wisdom to leave you with:
“The most important three words in investing is: “I don’t know.” If someone doesn’t say that to you then they are lying.” — James Altucher