Investors tend to prefer using forward P/E, though the current PE is high, too, right now at about 23 times earnings. There's no specific number that indicates expensiveness, but, typically, stocks with P/E ratios of below 15 are considered cheap, while stocks above about 18 are thought of as expensive.
What P/E can tell you about a stock, and what it can't | MoneySense
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A P/E of 30 is high by historical stock market standards. This type of valuation is usually placed on only the fastest-growing companies by investors in the company's early stages of growth. Once a company becomes more mature, it will grow more slowly and the P/E tends to decline.
P/E 30 Ratio Definition - Investopedia
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In general, a high P/E suggests that investors are expecting higher earnings growth in the future compared to companies with a lower P/E. A low P/E can indicate either that a company may currently be undervalued or that the company is doing exceptionally well relative to its past trends.
Price-to-Earnings (P/E) Ratio Definition - Investopedia
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Coupons.com Stock Price (QUOT) - Investing.com.
Coupons.com Stock Price (QUOT) - Investing.com
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