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Hopefully it will clean up the "stupid dialogue going on about ESG," he said. "Not in the sense that ESG was stupid, but that the dialogue was."
Even if Huobi is the specific catalyst for today's plunge, it's just the latest negative news in the sector that has been battered in the last few weeks.
Bitcoin had risen to nearly $43,000 earlier Thursday.
That didn't take long: Bitcoin is already back to where it was at the start of Wednesday, just before the biggest sell-off in 14 months.
The launch of the Dfinity project's internet computer (ICP) token on Coinbase Pro instantly makes it one of the largest cryptocurrencies.
Dogecoin has risen 130-fold this year, for a market capitalization of about $80 billion, on par with France's largest bank.
The Fed's own staffers didn't mention cryptocurrencies as a risk to financial stability, but market participants did.
Cryptocurrencies fall along with other risky assets on hint of higher interest rates.
Technical charts suggest a weakening trend, with altcoins rallying, as bitcoin slides toward $50,000.