Glamsterdam delay on October 22, 2026: What it means for the Ethereum price

Published on 10/23/2026 at 18:54 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

ChainSecurity identified 13 affected contracts. The Ethereum price is 2,386.99 USD on October 23, 2026, down 4.36 percent.

Protocol review and fund flows

Ethereum developers delayed Glamsterdam on October 22, 2026, while reviewing gas-accounting risks involving 13 real-world examples.
U.S. spot Ether ETFs recorded 320.1 million USD in net outflows from October 12 through October 16, 2026.
The Ethereum price stands at 2,386.99 USD as of October 23, 2026, 4.36 percent below the UTC daily close of October 22, 2026.
Spot Ether ETFs recorded a 14.9 million USD net inflow on October 21, 2026.

Ethereum, XCCRYPTOETH3, Illustration mit AI erstellt.

Ethereum (ETH) developers postponed the Glamsterdam upgrade on October 22, 2026, after security researchers identified 13 real-world examples linked to proposed gas-accounting changes. The Ethereum Foundation said the Hoodi testnet activation scheduled for October 26, 2026, was postponed while developers investigate interactions with mainnet smart contracts, according to Ethereum Foundation.

Glamsterdam delay removes the 200 million gas test

The postponed Hoodi activation had been scheduled for October 26, 2026, at 17:42:48 UTC. The plan also included a gas limit of 200 million, which is the maximum amount of computation permitted in a block. The Foundation said the delay removes the planned Amsterdam execution-layer activation, the Gloas consensus-layer activation and the gas-limit schedule from the testnet configuration, according to Ethereum Foundation.

ChainSecurity reported that EIP-8037 and EIP-8038 could leave some existing contracts with more or less gas than expected when an operation fails. The security firm identified 13 real-world examples during its review, while the reported issue concerns proposed changes rather than a confirmed exploit on Ethereum mainnet, according to CoinDesk.

Ether funds posted 320.1 million USD of outflows

U.S. spot Ether ETFs, funds that hold exposure to Ether through listed shares, recorded 320.1 million USD in net outflows from October 12 through October 16, 2026. BlackRock's ETHA accounted for 299.0 million USD of the weekly outflow, while Fidelity's FETH recorded 10.5 million USD of inflows, according to CoinDoo.

The daily flow record also showed a 14.9 million USD net inflow on October 21, 2026. That total included 13.0 million USD for FETH and 28.1 million USD for the fund listed as ETH, partly offset by a 29.3 million USD outflow from ETHA, according to Farside Investors.

Ethereum price is 2,386.99 USD on October 23

The Ethereum price stands at 2,386.99 USD as of October 23, 2026, down 4.36 percent compared with the UTC daily close of October 22, 2026, according to Investing.com. The daily high is 2,482.35 USD and the daily low is 2,362.21 USD. Market capitalization is 291.38 billion USD, ranking Ethereum second, while 24-hour volume is 11.65 billion USD and circulating supply is 122.15 million ETH, according to Investing.com.