According to reports, quantitative fund manager Renaissance Technologies increased its investment in the cryptocurrency ecosystem in the first quarter, accumulating the most prominent ever crypto mining stock position. As of the end of March, the total value of its holdings of mining stocks exceeded $140 million. These include 1.16 million Riot Blockchain shares (valued at US$61.8 million), 1.56 million Marathon shares (valued at US$75 million), and 203,672 Canaan shares (valued at US$4.2 million).