These companies wowed investors with their earnings, and analysts say buy them now

Jim Koch, co-founder and chairman of the Boston Beer Company
Source: The Boston Beer Company

Companies are rolling out strong earnings this season, and Wall Street analysts say that could translate to big returns for investors.

These stocks are likely heading higher, and shareholders should add them to their portfolio, analysts say.

Of the S&P 500 companies that have reported so far, 86% topped Wall Street's estimates by an aggregated 23%, according to Credit Suisse.

CNBC Pro combed through some of the top Wall Street research for stocks analysts say to buy during earnings season.