Retail sector: millionaire-maker stocks

Walmart and American Express, two long-standing retail and finance giants, have seen their stocks rise significantly over the past decade, sparking a narrative around "millionaire-maker" stocks. Walmart's dominance in the U.S. grocery industry and American Express's role in the credit card market have driven this growth. However, these stocks may trade at high premiums, potentially limiting further upside.

This narrative impacts the retail and finance sectors, with investors seeking similar growth opportunities. Companies with strong market positions and steady growth, like Costco and Visa, may attract investor attention. Meanwhile, consumers' increasing credit card debt could boost American Express's earnings, benefiting its stock price.

Investors should watch Walmart's Q2 earnings report on August 17 and American Express's Q2 results on July 19. Additionally, the U.S. consumer confidence index, due on July 27, could influence both stocks, as consumer spending accounts for a significant portion of their revenue.