Bloomberg analyst Eric Balchunas posted on the social media platform X that the state pension bought BlackRock IBIT (Bitcoin Spot ETF) in the first quarter, which unlike the past, is a good sign. The State of Wisconsin Investment Board (State of Wisconsin Investment Board) now has a $99 million stake in BlackRock's spot Bitcoin ETF IBIT, according to information on the SEC Form 13F, as disclosed in an official U.S. SEC filing.