Mike Santoli’s market notes: Stock valuations are elevated, but profit growth keeps pace with prices

Traders on the floor of the New York Stock Exchange.
Source: The New York Stock Exchange

This is the daily notebook of Mike Santoli, CNBC's senior markets commentator, with ideas about trends, stocks and market statistics.

  • A gentle extension of the persistent rally into an options-expiration Friday, as the market explores the borderlands between "strong" and "too strong."