Grayscale Bitcoin Cash Trust (BCH) 8-K

What Happened

• On June 16, 2026, CoinDesk Indices, Inc. (the Index Provider) announced it added OKX (BCH‑USDC trading pair) to the CoinDesk Bitcoin Cash Benchmark Rate used to calculate the Index Price for Grayscale Bitcoin Cash Trust (BCH). The Index Provider did not remove any Constituent Trading Platforms as part of its scheduled monthly review.
• The Trust filed an 8-K reporting this change; the report was signed by Edward McGee, Chief Financial Officer of Grayscale Investments Sponsors, LLC, on June 22, 2026.

Key Details

• Date of change: June 16, 2026 (announcement by CoinDesk Indices, Inc.).
• Addition: OKX added for the BCH‑USDC trading pair.
• Constituent Trading Platforms included as of the filing:
  • BCH‑USD pairs: Bitstamp by Robinhood, Crypto.com, Gemini, Kraken, LMAX Digital, OKX.
  • BCH‑USDC pairs: Binance, Bullish, Bybit, GATE, Kraken, OKX.
• The Index Provider performs scheduled monthly reviews and may add/remove venues or change calculation methods per the Trust’s Form 10‑K disclosures.

Why It Matters

• The CoinDesk Bitcoin Cash Benchmark Rate (the Index) is used to calculate the Trust’s Index Price (as described in the Trust’s 10‑K). Changes to the platforms included in that Index can affect which market data sources feed the Index Price.
• For investors, adding OKX broadens the set of trading venues contributing BCH price data for the Trust, while no platforms were removed in this review; the Index Provider may continue to change constituent venues in future reviews. This filing does not report financial results, management changes, or other operational developments.