From Europe to Japan and Switzerland, huge bond issues by Big Tech companies are proving that smaller markets, often overshadowed by the U.S., can punch above their weight in the $40 trillion world of corporate debt. Google-parent Alphabet is already one of the biggest outstanding borrowers in the sterling and Swiss franc corporate bond markets, while Amazon raised 14.5 billion euros ($16.88 billion) in March from an eight-part deal, the largest ever in the euro corporate bond market, according to LSEG. Debt issues by so-called "hyperscalers" - or Big Tech companies - outside the United States are part of a push to diversify their funding early on, bankers said, as they look to finance trillions of dollars of investment in AI infrastructure, especially data centers, in the years ahead. Raising debt in foreign currencies can also help the companies hedge the currency risk from their global assets, while taking advantage of relatively lower borrowing costs in places like Europe. Alphabet smashed records across markets, with its yen, Canadian dollar, Swiss franc and sterling deals all setting borrowing records in those currencies.