The tech billionaires who had front-row seats as President Donald Trump was being sworn in on Jan. 20 – including Elon Musk, Mark Zuckerberg and Jeff Bezos – have seen their wealth drop by a staggering $210 billion combined as the president’s economic policies have upended markets, a Bloomberg analysis found.

The Trump-aligned billionaires had enjoyed the period between Trump’s election and inauguration as a boon for the world’s wealthiest, with several all-time highs recorded on the S&P 500 Index, according to the analysis. But seven weeks later, a different story has emerged — with five of the billionaires who sat behind Trump as he took the oath of office for a second time taking the multibillion dollar hit.

It represents a “stunning reversal,” the analysis said.

“The companies behind the inauguration attendees’ fortunes have been some of the biggest losers, falling by a combined $1.43 trillion in market value since Jan. 17, the last trading day before the inauguration,” Bloomberg reported.

Musk, whose time heading Trump’s Department of Government Efficiency initiative has drawn alarm from frustrated investors, has seen the most significant loss of the billionaire group – a whopping $145 billion hit since the president’s swearing-in ceremonies.

Bezos saw his wealth drop $31 billion, while Google founder Sergey Brin saw a $23 billion hit. Zuckerberg lost $8 billion and Louis Vuitton Moët Hennessy CEO Bernard Arnault lost $5 billion, Bloomberg reported.