Golden Finance reported that Michael Sonnenshein, CEO of crypto asset management company Grayscale Investments, discussed his views on Bitcoin and market expectations for the U.S. SEC’s possible approval of a spot Bitcoin ETF in an interview with CNBC. Grayscale Investments expects that the approval of the spot Bitcoin ETF by the U.S. SEC will allow the $30 trillion wealth market to gain exposure to Bitcoin. "I do think there is a lot of optimism in the market that a lot of investors are adding Bitcoin to their portfolios," Sonnenshein said.