道指开盘跌0.02%，标普500涨0.1%，纳指涨0.3%

Group 1 - Confluent, a data streaming software company, saw a stock increase of 29% [1] - IBM announced a significant acquisition, spending $11 billion to acquire a company [1] - Broadcom's stock rose by 3.3%, as Microsoft is in talks to transfer its custom chip business from Marvell Technology to Broadcom [1] Group 2 - Marvell Technology's stock declined by 7.2% following the news of the business transfer to Broadcom [1] - CoreWeave's stock fell by 5.4%, as the company plans to issue $2 billion in convertible bonds [1] - Carvana, a used car retailer, experienced a stock increase of 9.0%, while CRH's stock rose by 6.7%, as both companies were added to the S&P 500 index [1]