In 2021, more than 16 percent of Signature Bank's deposits came from the Crypto Currencies.
In 2023 February, the figure had risen to 30 percent. The cryptocurrency enthusiasts boosted the bank's stock from $75 to $375 a share within a year and this bubble strategy proved the highest risk momentum to this "crypto bank"! When the "cryptocurrency bubble" was broken in 2023, the bank has lost billions of dollars on its investment.
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Some economists and prominent investors have expressed the view that the entire cryptocurrency market constitutes a speculative bubble. Adherents of this view include Berkshire Hathaway board member Warren Buffett and several laureates of the Nobel Memorial Prize in Economic Sciences, central bankers, and investors.