Grayscale Bitcoin Trust ETF Index Update

Summary

Grayscale Bitcoin Trust ETF (GBTC) announced a change in the Index Price calculation for its Bitcoin Index. CoinDesk Indices, Inc., the Index Provider, added Bitfinex to its list of Constituent Trading Platforms effective June 22, 2025, due to Bitfinex meeting the minimum liquidity requirement. The new list of platforms includes Coinbase, Kraken, Bitstamp, Crypto.com, LMAX Digital, Bullish, and Bitfinex. This update reflects the Index Provider's quarterly review process to maintain adequate liquidity for the Index.