> I'm confused over the significance of the P/E ratio. Ratios have to be considered in context of expected future growth and expected future profit margin (rev

> I'm confused over the significance of the P/E ratio. Ratios have to be considered in context of expected future growth and expected future profit margin (revenue grows a little but profit grows a lot). Even considering that, some ratios seem extreme. FB Forward P/E: 44.85 FB PEG Ratio: 1.67 AMZN Forward P/E: 85.52 AMZN PEG Ratio: 5.92 CRM Forward P/E: 69.06 CRM PEG Ratio: 3.29