US Productivity Growth Slows in Q4 While Labor Costs Accelerate Charter Communications Reaches Buyout Agreement for Liberty Broadband at Enhanced Terms Retail Investors Gain Direct Access to SpaceX IPO via Major Brokerage Platforms Older Americans Embrace Unretirement as Financial Needs and Purpose Drive Return to Work Bond Markets Anticipate Policy Shift as Kevin Warsh Takes Helm at Fed OpenAI Takes Early Lead in AI IPO Race as Confidential Filing Reports Emerge Humana Eyes MultiYear Margin and Returns Recovery Signaling Potential Strategic Turnaround