As we approach earnings season, making sure you’re in the right stocks at the right time is of critical importance.

After taking a close look at the latest data on institutional buying pressure and each company’s fundamental health, I decided to revise my Portfolio Grader recommendations for 41 big blue-chip stocks. Chances are that you have at least one of these blue-chip stocks in your portfolio.

So, you may want to give this list of 41 blue-chip stocks a skim and act accordingly.

Last Week’s Holds, Now Buys

Source: InvestorPlace unless otherwise noted

Last Week’s Sells, Now Holds

Source: InvestorPlace unless otherwise noted

Last Week’s Buys, Now Holds

Source: InvestorPlace unless otherwise noted

Last Week’s Holds, Now Sells

Source: InvestorPlace unless otherwise noted

Louis Navellier is a renowned growth investor. He is the editor of five investing newsletters: Blue Chip Growth, Emerging Growth, Ultimate Growth, Family Trust and Platinum Growth. His most popular service, Blue Chip Growth, has a track record of beating the market 3:1 over the last 14 years. He uses a combination of quantitative and fundamental analysis to identify market-beating stocks. Mr. Navellier has made his proven formula accessible to investors via his free, online stock rating tool, PortfolioGrader.com. Louis Navellier may hold some of the aforementioned securities in one or more of his newsletters.