Internet High-Fliers Experience Large Mark-Ups

 | Sep 08, 2013 05:13AM ET

Many internet-related stocks have been on fire lately. In many ways, the run-up has been about mobile, so it may not even be technically accurate to call this feature a valuation update on internet-related stocks. Regardless, the most notable change since mid-June is that the internet high-fliers have experienced significant run-ups this summer. Facebook (FB), Yelp.com (YELP), LinkedIn (LNKD), and Zillow (Z) experienced significant surges over the past 3 months.

Click the chart below for a larger view of the price-to-sales (P/S) ratios of select internet-related stocks. The chart is ordered from left-to-right by the latest P/S ratio. (This will be the last update to include Kayak. It is off to the right and not included in the P/S ordering). As a reminder, I use P/S ratios instead of P/E so that I can compare profitable and unprofitable companies.