Global Stocks Surge Beyond Trillion-Dollar Milestones as AI Boom Trumps Geopolitical Headwinds | #stock market news # global markets today # Micron $1 trillion valuation # semiconductor tech rally # Agentic AI enterprise # S&P 500 all-time high # Nasdaq record close # Sensex trading update # geopolitical market impact # gold price correction # corporate earnings growth # UBS stock upgrade.