Nvidia has invested $1bn into AI start-ups, leveraging its $9bn war chest to fuel innovation and future revenues while navigating antitrust concerns linked to its dominant position in the chip market.

Investors have withdrawn $450bn from actively managed stock funds in favour of cheaper index-tracking investments, as traditional funds struggle with underperformance and the dominance of Big Tech in markets.

US credit card defaults have significantly increased as consumer finances are strained, exacerbated by inflation and leading to the highest delinquency rates in 14 years.

Investor demand has soared, pushing corporate debt sales to a record $8tn as borrowing costs decrease, issuance accelerates, and market participants anticipate further activity.