Grayscale has introduced staking to its ether and solana investment products, becoming the first firm to offer staking through U.S.-listed spot crypto exchange-traded products (ETPs). The update applies to the Grayscale Ethereum Trust ETF (ETHE), Ethereum Mini Trust ETF (ETH), and Grayscale Solana Trust (GSOL), which were already available to investors. Grayscale’s ETHE has an estimated $4.82 billion in net assets, while its mini trust has$3.31 billion. Its GSOL trust has $122.5 million in assets unde ...