The very richest Americans are among the biggest winners from President Joe Biden’s time in office, despite his farewell address warning of an “oligarchy” and a “tech industrial complex” that threaten US democracy.

The 100 wealthiest Americans got more than $1.5 trillion richer over the last four years, with tech tycoons including Elon Musk, Larry Ellison and Mark Zuckerberg leading the way, according to the Bloomberg Billionaires Index. The top 0.1% gained more than $6 trillion, Federal Reserve estimates through September show.