While even the bluest of blue chip stocks move up and down on a day-to-day basis, the same generally can't be said on the timetable of a decade or more. Investing in quality businesses and sticking with them over time is a proven way to grow richer.

A $10,000 investment in pharmaceutical stalwart Eli Lilly (NYSE: LLY) made 10 years ago would now be worth $79,000 with dividends reinvested. Putting this into perspective, that is leaps and bounds ahead of the $32,000 that the same investment amount put into the S&P 500 index 10 years ago would have turned into with dividends reinvested. 

But is Eli Lilly stock still a buy for growth investors? Let's examine the company's fundamentals and valuation to work out an answer to this question.

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Source Fool.com