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.

Analysts expect U.S. high-grade corporate bond spreads to widen.

Across the United States, Europe, and Asia, businesses and governments have borrowed roughly US$260 billion so far, and a barrage of offerings from borrowers in Asia is poised to push that number higher.

Tech firms are expected to turn to debt for as much as $1.5 trillion by 2028, which could widen spreads across the whole market