Stocks futures are slightly higher to kick off the week as announcements from AI chipmaker Nvidia spark big moves in a number of tech sector shares; Nvidia stock gaining after CEO Jensen Huang delivered a keynote address at a conference in Taiwan; Huang unveiled a new line of AI agent-focused laptops Nvidia is building in partnership with a group of companies, news that sent IBM soaring and Intel sliding; Berkshire Hathaway is acquiring Taylor Morrison Home Corp. in the firm's first big acquisition under CEO Greg Abel; investors are preparing for a busy week of earnings reports and economic data. Here's what you need to know today.