Households earning more than $100,000 made up 75% of the company’s market share gains in the fiscal third quarter, Walmart CEO Doug McMillon said on the company’s earnings call in November.

Wall Street's main indexes fell on Thursday as investors awaited monetary policy clues from the Federal Reserve's annual economic symposium, while big-box retailer Walmart's quarterly results dampened sentiment.

This week's set-piece event is the Jackson Hole central-bank gathering in Wyoming, slated for Thursday through Saturday. Investors will tune into Federal Reserve Chair Jerome Powell's speech for any h