Grayscale's New Trust Agreement Could Unlock 161,000 Idle ETH for Staking

Grayscale has announced a significant change to its Ethereum Staking Mini ETF, which currently holds 161,000 ETH that has remained unutilized. A new trust agreement, signed on August 6, is set to make staking the default operation for nearly all assets within the fund, with the aim of reducing the idle ETH to zero.

This amendment comes just ahead of a crucial IRS deadline on August 10, allowing crypto funds to stake without incurring fund-level taxes. The new structure mandates that rewards generated from staking must be distributed to shareholders at least quarterly, with plans for monthly cash payouts.

Grayscale's previous experience with staking has proven beneficial, as the Mini ETF has accumulated $27.3 million in net rewards since it began staking in October 2025, achieving a net staking yield of 2.61% annually after fees. As of the latest update, 80.8% of the fund's total 839,556 ETH is already staked, leaving approximately 161,000 ETH as a reserve for operational needs.

In a competitive landscape, rivals such as Morgan Stanley have launched Ethereum and Solana funds with lower fees, prompting a shift among institutional investors towards staked Ethereum products. Currently, Ethereum is trading around $1,915, reflecting a 0.4% increase over the past 24 hours. The potential for increased staking rewards hinges on the deployment of the idle ETH, with future disclosures expected to reveal the pace of this transition.