Hong Kong-based asset manager Metalpha has raised $5 million from Bitmain for its Grayscale-based fund, CoinDesk reported citing sources. Metalpha hopes to raise $100 million for the Next Generation Fund I, which it formed in partnership with NextGen Digital Venture Limited. As of the end of March, Metalpha had raised $20 million toward that goal. The fund invests in Grayscale products through structured derivatives, granting access to the pillars of the digital asset portfolio in a manner compliant with US and Hong Kong laws.