By Karishma Vanjani A rally among the biggest technology stocks in the world has pushed the U.S. stock market to nosebleed levels as investors braced for a slew of earnings. CONCLUDED Stock Market Today: Dow Hits Record Last Updated: Updated 10 hours ago Tech Giants Power On: Microsoft Hits $4 Trillion, Nvidia Races for$5 Trillion The Wall Street Journal Cryptocurrencies Data Magazine Markets Stock Picks Barron's Live Roundtable Barron's Stock Screen Personal Finance Streetwise Advisor Directory The S&P 50 ...