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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

A critical pearl of wisdom from Warren Buffett teaches us that with any potential stock investment we may make, as soon as our buy order is filled we will have a choice: to remain a co-owner of that company for the long haul, or to react to the inevitable short-term ups and downs that the stock market is famous for (sometimes sharp ups and downs).

The reality of this choice forces us to challenge our confidence in any given company we might invest into, and keep our eyes on the long-term time horizon. The market may go up and down the interim, but over a decade-long holding period, will the investment succeed?

Back in 2015, investors may have been asking themselves that very question about Lennox International Inc (NYSE: LII). Let’s examine what would have happened over a decade-long holding period, had you invested in LII shares back in 2015 and held on.

Start date: 01/14/2015
$10,000

01/14/2015
  $71,994

01/13/2025
End date: 01/13/2025
Start price/share: $96.87
End price/share: $618.51
Starting shares: 103.23
Ending shares: 116.40
Dividends reinvested/share: $29.99
Total return: 619.94%
Average annual return: 21.81%
Starting investment: $10,000.00
Ending investment: $71,994.43

As we can see, the decade-long investment result worked out exceptionally well, with an annualized rate of return of 21.81%. This would have turned a $10K investment made 10 years ago into $71,994.43 today (as of 01/13/2025). On a total return basis, that’s a result of 619.94% (something to think about: how might LII shares perform over the next 10 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Notice that Lennox International Inc paid investors a total of $29.99/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 4.6/share, we calculate that LII has a current yield of approximately 0.74%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 4.6 against the original $96.87/share purchase price. This works out to a yield on cost of 0.76%.

Here’s one more great investment quote before you go:
“You make most of your money in a bear market, you just don’t realize it at the time.” — Shelby Davis