Birkenstock BIRK Shares Surge 33 on 250 Million Share Buyback Announcement Lenovo Shares Surge Over 15 on Record Earnings as AI Revenue Nearly Doubles US Productivity Growth Slows in Q4 as Labor Costs Rise Quantum Computing Stocks Surge on US Governments 2 Billion Funding Initiative Oura Health The Finnish Startup Redefining Wearable Health Technology with Smart Ring Innovation Powell to Step Down as Fed Chair but Remain on Board Signaling Policy Continuity Dropbox Founder Drew Houston Steps Down as CEO After Nearly Two Decades Logan Paul Crypto Speculators Fuel Pokmon Card Market Surge Wall Street Futures Point to Fifth Straight Day of Gains as AI Momentum and Falling Oil Prices Boost Sentiment AI Casts Shadow Over Japans NearRecord Hiring of New Graduates UK Spy Chief Warns West Faces Moment of Consequence Amid Threats From Russia and China Market Rally Highlights Portfolio Winners and Laggards Over Recent Six Weeks Verisk Analytics Outlook Wall Street Sentiment and Analyst Perspective 30 Nifty Stocks Wipe Out Rs 2264 Lakh Crore in Investor Wealth This Year HDFC Bank and TCS Lead Decline