Several cryptocurrency billionaires recorded major wealth declines in 2025 following sharp volatility across digital asset markets, according to a new report.
Data from the Bloomberg Billionaires Index showed that losses were concentrated after a severe crypto market slide in October.
Strategy executive chairman Michael Saylor was among the biggest losers, with his net worth falling sharply over the past year.
Bloomberg reported that Saylor lost $2.6 billion in the last 12 months, reducing his estimated net worth to $3.8 billion.
Strategy’s Bitcoin treasury strategy] generated huge returns through early October, when Bitcoin hit fresh highs. However, things began to turn south soon after as a slump in Bitcoin’s value sent Strategy’s stock price plunging by more than half, dragging Saylor’s net worth down nearly $6 billion from its high-water mark in the process.
Bloomberg said.
Gemini co-founders Cameron and Tyler Winklevoss also suffered significant losses during the same period.
Bloomberg said the Winklevoss twins saw their combined wealth decline by 59% since the beginning of the year.
Former Binance chief executive Changpeng “CZ” Zhao was also affected by the market downturn.
Zhao reportedly lost around 5% of his estimated $50.9 billion net worth since Jan. 1.
Despite the losses, Bloomberg noted that eight individuals still accounted for roughly 25% of the $2.2 trillion in total billionaire gains in 2025.
In contrast, Circle chief executive Jeremy Allaire recorded substantial gains during the year.
Allaire’s net worth reportedly increased by 149% since June, supported by regulatory developments in the United States.
The report also highlighted growing adoption of corporate crypto treasury strategies during 2025.
Data from Bitcointreasuries.net showed that around 192 public companies held Bitcoin on their balance sheets.
Bitcoin prices declined about 7% since the start of the year after reaching record highs in October.
At the time of reporting, Bitcoin price was $87,559.18.