US stocks declined on Thursday following a cautionary statement from the world's largest retailer, Walmart. The company expressed concerns about a possible downturn in sales for the year, attributing it to consumer fatigue. This announcement led to a significant drop of over 600 points, or 1.5%, in the Dow, with Walmart's stock plummeting by 7%. Investors reacted to the news with apprehension regarding consumer spending, a key component of the economy, which accounts for two-thirds of its overall activity.