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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

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 five year holding period possibly?

Suppose a “buy-and-hold” investor was considering an investment into McKesson Corp (NYSE: MCK) back in 2018: back then, such an investor may have been pondering this very same question. Had they answered “yes” to a full five year investment time horizon and then actually held for these past 5 years, here’s how that investment would have turned out.

Start date: 02/27/2018
$10,000

02/27/2018
  $24,529

02/24/2023
End date: 02/24/2023
Start price/share: $153.68
End price/share: $359.14
Starting shares: 65.07
Ending shares: 68.31
Dividends reinvested/share: $8.52
Total return: 145.31%
Average annual return: 19.68%
Starting investment: $10,000.00
Ending investment: $24,529.03

As shown above, the five year investment result worked out exceptionally well, with an annualized rate of return of 19.68%. This would have turned a $10K investment made 5 years ago into $24,529.03 today (as of 02/24/2023). On a total return basis, that’s a result of 145.31% (something to think about: how might MCK shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Many investors out there refuse to own any stock that lacks a dividend; in the case of McKesson Corp, investors have received $8.52/share in dividends these past 5 years examined in the exercise above. This means total return was driven not just by share price, but also by the dividends received (and what the investor did with those dividends). For this exercise, what we’ve done with the dividends is to assume they are reinvestted — i.e. used to purchase additional shares (the calculations use closing price on ex-date).

Based upon the most recent annualized dividend rate of 2.16/share, we calculate that MCK has a current yield of approximately 0.60%. Another interesting datapoint we can examine is ‘yield on cost’ — in other words, we can express the current annualized dividend of 2.16 against the original $153.68/share purchase price. This works out to a yield on cost of 0.39%.

One more piece of investment wisdom to leave you with:
“Based on my own personal experience, both as an investor in recent years and an expert witness in years past, rarely do more than three or four variables really count. Everything else is noise.” — Martin Whitman