An Amazon data center in the U.S. state of Indiana. Tech giants are pouring money into such AI infrastructure. © Reuters
KOHEI YAMADA
November 4, 2026 05:02 JST
PALO ALTO, California — U.S. tech giants’ off-balance-sheet debt from artificial intelligence-related obligations continues to balloon, almost doubling in six months to about $3.2 trillion, with investors increasingly alarmed by seemingly unending spending.