智通财经网·2025-08-13 14:52Core Viewpoint - The announcement by Amazon regarding same-day delivery of fresh groceries has negatively impacted the stock prices of several major U.S. retailers, indicating increased competition in the grocery sector [1] Group 1: Stock Price Movements - Kroger's stock (KR.US) fell nearly 5% [1] - Walmart's stock (WMT.US) declined over 2% [1] - Costco's stock (COST.US) and Target's stock (TGT.US) both dropped over 1% [1] Group 2: Amazon's Service Expansion - Amazon has launched a same-day delivery service for fresh groceries, covering over 1,000 cities [1] - The company plans to expand this service to over 2,300 cities in the U.S. by the end of the year [1] - Customers can order a variety of fresh products, including produce, dairy, meat, seafood, baked goods, and frozen foods, alongside other items available for same-day delivery [1]