Crypto Crash Is Eroding Wealth for Trump’s Family and Followers

In President Donald Trump’s second term, crypto assets transformed his family’s wealth. Now the Trumps — and their followers — are getting a crash course in the wild volatility ingrained in digital currencies.

The value of a Trump-branded memecoin has fallen by about a quarter since August. Eric Trump’s stake in a Bitcoin mining venture has shed roughly half its value from its peak. And shares of Trump’s social media company, which started hoarding Bitcoin this year, are hovering near an all-time low.

The selloff is part of a broader rout that’s wiped out more than $1 ...