KEY POINTS
  • The grocery industry is seeing heightened pressure on profit margins, according to a Loop Capital Markets research note. 
  • As a result, the research firm holds a netural view on the industry despite an acceleration in sales.
  • Walmart has the market-leading position in the U.S. grocery space but same-store sales gains by rivals are  narrowing the gap, the firm said. 
  • The Commerce Department found that grocery sales in the third quarter rose by 4% year-over-year.
Woman shops for groceries.

Walmart continues to lead the U.S. grocery sector, but the gap with its rivals is narrowing, and pressure on profits is rising, according to a new report from Loop Capital Markets.

Walmart has a 22% share of the $847 billion U.S. grocery industry, according to analyst Andrew Wolf.