Stock screen: Cheapest, most expensive stocks now

Sanjit Das | Bloomberg | Getty Images

As the market hovers back near record highs, valuations among certain sectors and stocks appear stretched, while other lagging groups seem to hold some value, according to research by CNBC Pro using FactSet.

Since the market low on Feb. 11, the has rallied more than 13 percent, pushing the 12-month price-earnings ratio of the equity benchmark to 18.5, a level some investors call unattractive.

In comparison, the average P/E over the last 15 years — which admittedly includes both the highs of the dot-com bubble, and the lows of its bursting, along with the financial crisis of 2008-09 — is around 17.

In exclusive content for Pro members, CNBC's Dominic Chu runs through the numbers to highlight the stocks and sectors which are the most undervalued and the ones which may be due for some profit-taking.

Watch the video below to find out the results.