US Productivity Growth Slows in Q4 as Unit Labor Costs Accelerate MarketWatch Report US Stocks Slide as DeepSeek Sparks Widespread AI SellOff SP 500 Edges Higher as Tech Surge Offsets Energy Slide Quantum Computing Stocks Surge on US Governments 2 Billion Funding Plan US Stock Futures and Bond Yields Decline Amid Reports of Updated Russian Nuclear Doctrine RBI Rate Cut May Signal Policy Framework Shift Nomura Suggests 401k Millionaire Count Dips but Savings Rates Hit Record Highs Fidelity Data Shows Mixed Trends