Amazon-Walmart rivalry became the week's clearest retail shift

Retail competition was the week's most persistent business thread: Amazon's scale advantage met Walmart's effort to challenge it through overlapping deal events and online sales. The market also focused on how financing pressure and operational shortcomings can reshape companies faster than planned growth can.

Hertz turned a funding plan into a sharp stock-market shock, while Ford's repeated rehiring of experienced engineers showed automation falling short of expectations. Wendy's added a smaller but recurring signal of how meme-trader activity can drive attention and volatility in a consumer stock.