Think Nvidia Stock Is Expensive? These 3 Members of the S&P 500 Trade at Even Higher Valuations.

Investors who know how to value a stock properly always have an eye on the future.Is Nvidia (NVDA 1.69%) stock overvalued? This question, while simple on the surface, is extraordinarily hard to answer.Many investors use a valuation metric called a price-to-earnings (P/E) ratio. This popular metric is useful because it measures the stock price against a company's profits. And in Nvidia's case, its P/E ratio of 57 certainly looks expensive, considering it's roughly double the P/E ratio for the S&P 500.Then ag ...