— Bill Reed I notice that P/E ratios can be quite inconsistent and vary from site to site. Before we figure out a stock's PEG ratio, we need to calculate its compound annual growth rate or CAGR. Nvidia is trading at 41 times earnings, our equation would be 41/28.21 which equals a PEG ratio of 1.45 times. As a general rule, a PEG ratio of 1 or lower indicates you're getting future growth at a good value. Most importantly, the PEG isn't the end-all-be-all, It's just another way of thinking about valuation.

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Persons: Jim Cramer, Bill Reed, Mike M, it's, Let's, It's, Jim Cramer's, Jim, Michael M Organizations: CNBC, Nvidia, Jim Cramer's Charitable, Traders, New York Stock Exchange, Santiago, Getty