As Ethereum prepares for its most significant protocol upgrade since transitioning to Proof-of-Stake, a simultaneous contraction in the supply of its native token is creating a unique market dynamic. The ambitious hard fork, codenamed Glamsterdam and tentatively scheduled for the first half of 2026, arrives at a time when available ETH is becoming increasingly scarce through multiple channels.
A Multi-Front Supply Constriction
The circulating supply of Ethereum is tightening considerably. A record-breaking 38.5 million ETH, representing nearly 32% of the total supply, is currently locked in staking contracts. This substantial stake is complemented by corporate treasuries, where publicly traded companies hold an additional 7.4 million ETH on their balance sheets. Concurrently, the proportion of ETH held on exchanges has dwindled to just 12% of the total supply.
This trend was underscored this week by Bitmine, which expanded its position by 71,252 ETH. The firm now holds 4.8 million tokens, approximately 3.98% of all ETH, with a stated goal of reaching a 5% stake. When staking locks, corporate holdings, and exchange outflows are aggregated, close to 50% of the ETH supply is effectively removed from active trading.
Further demand catalysts may be on the horizon. Asset management giants BlackRock and Fidelity have filed applications for staking-based Exchange-Traded Funds (ETFs). These proposed products would offer investors exposure to ETH’s price movement alongside potential annual staking yields of 3.5% to 4%. In a related development, Charles Schwab—which oversees nearly $12 trillion in client assets—has announced plans to introduce spot trading for both Bitcoin and Ether in the first half of 2026.
Near-term sentiment, however, faces pressure from geopolitical uncertainty. Traders remain on alert due to threats of escalation in Middle Eastern conflicts and their potential impact on crucial shipping routes like the Strait of Hormuz. Despite this, ETH currently trades roughly 30% below its 200-day moving average, even as the foundational groundwork for the latter half of 2026 is being laid.
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The Glamsterdam Upgrade: A Deep Architectural Shift
Scheduled for mid-2026, the Glamsterdam hard fork represents a profound technical evolution for the Ethereum network, bundling two core improvements.
The first, known as EIP-7732, aims to integrate the block-building process directly into the core protocol. This change would drastically reduce the network’s current 80-90% reliance on external relay services like MEV-Boost. The second proposal, EIP-7928, introduces Block-Level Access Lists alongside a comprehensive repricing of transaction fees (gas). Developers project this combination could lower costs for users by up to 78.6%, benefiting everything from simple transfers to complex smart contract interactions.
For decentralized finance (DeFi) participants, a key outcome could be a reduction in Maximum Extractable Value (MEV) gains derived from transaction reordering by as much as 70%, leading to more equitable execution prices. Furthermore, planned incremental increases to the gas limit are designed to scale Ethereum’s throughput toward a target of 10,000 transactions per second.
The upgrade is not without potential trade-offs. Ethereum researcher Toni Wahrstätter has cautioned that EIP-7732 may introduce a latency of approximately two seconds in transaction inclusion. He has launched the tool txdelay.xyz to monitor and measure these potential delay effects.
Testing is underway, with Devnet-4 completed and Devnet-5 currently active. While developers have cited June 2026 as a target, they emphasize the date remains fluid. Given the complexity of integrating the new execution-layer Proposer-Builder Separation (ePBS) with Block-Level Access Lists—a combination untested at mainnet scale—a delay into the third or fourth quarter of 2026 is considered a realistic possibility.
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