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The second quarter earnings season is nearly complete, with Nvidia's (NVDA) Q2 results on Wednesday serving as a keystone to a remarkably strong stretch of corporate reports.

According to FactSet data, second quarter earnings for S&P 500 companies are on pace to rise 50% year over year, the highest growth rate since 2021. Artificial intelligence has been the growth engine of that broad-based earnings growth, Bank of America strategists noted.

In addition to Nvidia's results, investors watched for key updates from dollar stores Dollar Tree (DLTR) and Dollar General (DG); software companies, such as Salesforce (CRM), Intuit (INTU), and Zoom (ZM); and other retailers like Dick's Sporting Goods (DKS) and Kohl's (KSS).