Grayscale Ethereum Trust ETF Changes to Index Constituent Trading Platforms

CoinDesk Indices, Inc., the Index Provider for the Grayscale Ethereum Trust ETF, has announced a change to the Digital Asset Trading Platforms used to derive the Index Price. Effective December 21, 2025, Bitstamp by Robinhood was added to the CoinDesk Ether Price Index (ETX) due to meeting the Index Provider’s minimum liquidity requirement. No platforms were removed during the scheduled quarterly review. The current Constituent Trading Platforms include Coinbase, Kraken, Crypto.com, LMAX Digital, Gemini, and Bitstamp. The Index Provider reserves the right to modify the trading venues or calculation methods for the Index Price at any time, with scheduled quarterly reviews to assess platform inclusion.