BondsBoom driven by hyperscalers like Amazon, Oracle starting to widen credit spreadsBig U.S. tech companies are issuing tens of billions of dollars in bonds to fund AI-related projects such as data centers. (Source photos by Getty/Kyodo and Reuters) MIYU FUKAWA, HARUKI KITAGAWA and SHINO KATAYAMAJuly 23, 2026 03:41 JSTTOKYO -- Corporate bond issuance worldwide reached $3.68 trillion in the January-June period for another first-half record as companies vie to fund artificial intelligence investments, though concern about the aggressive borrowing has investors starting to seek higher yields.