Stock market today: Dow, S&P 500, Nasdaq waver in volatile trading as AI anxiety lingers

Group 1: Market Overview - US stocks experienced volatility with the Nasdaq Composite falling 0.1% and the S&P 500 also shedding approximately 0.1%, while the Dow Jones Industrial Average remained stable above the flatline [1] - Concerns regarding AI's impact on various industries have led to a decline in the Dow and S&P 500, which have fallen in four of the past five weeks [2] Group 2: Earnings Reports - The final stretch of earnings season is underway, with Constellation Energy's results being closely watched for insights on AI's influence on energy demand, alongside reports from Medtronic and Palo Alto Networks [3] - Walmart's quarterly report, the first since reaching a trillion-dollar market cap, is anticipated as a highlight of the week [3] Group 3: Corporate Developments - Paramount Skydance's stock rose over 5% following news that Warner Bros. Discovery has requested a better offer from the studio after rejecting its latest bid [4] Group 4: Economic Indicators - A series of economic readings, including the delayed December Personal Consumption Expenditures index, are expected to be released, particularly after a cooler-than-expected consumer inflation report [5] - An advance look at fourth quarter GDP is scheduled for release, which will provide insights into economic health amid discussions on interest-rate cuts [6]