Tech Stocks Tumble on Worries Over A.I. Spending and China’s Chips

A global technology stock sell-off intensified on Tuesday, underpinned by worries over hefty bills for the build-out of artificial intelligence systems and concerns over tougher competition from China. The Nasdaq Composite index, chock-full of big technology companies, came close on Tuesday to falling into correction, Wall Street’s term of a drop of 10 percent or more from its recent peak, before rebounding and ending the day down just 0.2 percent. Still, the slide among top chipmakers remained. The American chip company Micron declined more than 8 percent on Tuesday, as…

China’s Chip Champion to Raise Billions in Race for A.I. Control

China’s largest maker of memory chips is raising billions of dollars in a blockbuster public offering to pursue the nation’s agenda of technological self-sufficiency and leadership in the global race to develop artificial intelligence. ChangXin Memory Technologies, known as CXMT, said in a filing on Wednesday that it had roughly doubled the price of its offering on the Shanghai exchange from earlier guidance, based on strong investor demand. It is seeking to raise the equivalent of up to $9.8 billion. That would be the largest initial public offering in Asia…