Bitmine has staked 74,880 ETH, valued at $219 million, in Ethereum's Proof of Stake (PoS) system as of December 27. This marks the company's first foray into staking, bringing its total Ethereum holdings to 4.066 million ETH. With an annual percentage yield (APY) of 3.12%, the staked amount could potentially generate 126,800 ETH in interest annually, equivalent to $371 million. Despite this significant move, Ethereum's price remains stable, reflecting ongoing institutional interest in PoS rewards.