Crypto Billionaires’ Vast Fortunes Are Destroyed in Weeks

(Bloomberg) — It’s been a long few weeks since the crypto crowd was partying in Miami.

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Coinbase Global Inc. founder Brian Armstrong had a personal fortune of $13.7 billion as recently as November and about $8 billion at the end of March. That’s now just $2.3 billion, according to the Bloomberg Billionaires Index, after a selloff in digital currencies from Bitcoin to Ether triggered a precipitous decline in the market value of Coinbase, the largest US…