Photo credit:

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

— Warren Buffett

The above quote from Warren Buffett is timeless, and brings into focus the choice about time horizon that any investor should think about before buying a stock they are considering. Behind every stock is an actual business; what will that business look like over a five year period?

Today, let’s look backwards in time to 2016, and take a look at what happened to investors who asked that very question about DexCom Inc (NASD: DXCM), by taking a look at the investment outcome over a five year holding period.

Start date: 01/13/2016


End date: 01/12/2021
Start price/share: $71.32
End price/share: $360.17
Starting shares: 140.21
Ending shares: 140.21
Dividends reinvested/share: $0.00
Total return: 405.01%
Average annual return: 38.22%
Starting investment: $10,000.00
Ending investment: $50,493.98

The above analysis shows the five year investment result worked out exceptionally well, with an annualized rate of return of 38.22%. This would have turned a $10K investment made 5 years ago into $50,493.98 today (as of 01/12/2021). On a total return basis, that’s a result of 405.01% (something to think about: how might DXCM shares perform over the next 5 years?). [These numbers were computed with the Dividend Channel DRIP Returns Calculator.]

Here’s one more great investment quote before you go:
“Buy not on optimism, but on arithmetic.” — Benjamin Graham