The deal, priced on Monday, attracted as much as $85 billion of orders, or more than three times the size of the offering.

The issuance was the largest among 12 high-grade offerings and part of an active session in U.S. debt-capital markets today.

QTS's debut high-grade bond sale continues the trend of investor funds funneling into infrastructure for AI hyperscalers.

Amazon's jumbo debt sale can't be seen as representative of broader credit-market demand; as geopolitical uncertainty continues to be the main factor weighing on markets.

The planned offering combining euro- and dollar-denominated bonds would test demand for high-grade debt since issuance ground to a halt earlier this week.

Along with other tech giants, Google's parent company is fanning fears that the billions of dollars of debt needed to fund the AI arms race will weigh on credit markets.

The company issued $17.5 billion of bonds in the United States, after issuing €6.5 billion in Europe.

The technology giant—which has nearly doubled in value this year—is issuing debt in six parts, including a rare 40-year bond.