S&P 500 Gains and Losses Today: Adobe Stock Falls as Guidance Blurs AI Outlook

Market Overview - The S&P 500 declined by 0.5% on December 12, 2024, following a report indicating higher-than-expected wholesale inflation in November [1][2] - Major U.S. equity indexes, including the Dow and Nasdaq, also experienced declines, with the Nasdaq dropping 0.7% and falling below the 20,000-point threshold [3] Company Performance - Adobe's shares fell by 13.7% after the company provided lower-than-expected sales guidance, raising concerns about its position in the competitive generative AI software market despite strong demand for AI tools [4] - Nordson's shares dropped 8.2% despite exceeding fiscal fourth-quarter sales and profits, attributed to a conservative outlook due to lower backlog and restrained customer spending [5] - Western Digital's shares decreased by 5.6% after management indicated that pricing for NAND flash memory would face more pressure than previously expected [6] Industry Developments - The steel industry faced pressure as UBS analysts downgraded their view on stocks like Nucor and Steel Dynamics, leading to approximately 5% losses for both companies [7] - Warner Bros. Discovery's shares surged by 15.4% after announcing plans to separate its television business from its streaming and film studios, aiming for greater flexibility in the evolving media landscape [8] Positive Company News - C.H. Robinson Worldwide's shares rose by 4.5% following its investor day, where the CEO emphasized the company's transformation to a lean operating model and successful AI deployment [9] - MetLife's shares increased by 3.6% after unveiling a five-year growth plan focused on boosting profits and free cash flow while addressing opportunities in group benefits, retirement, asset management, and international markets [10]