ETCG switches to simpler index price calculation for ETC valuation

Grayscale Ethereum Classic Trust (ETC)

Effective Feb 1, 2022, Trust uses Index Price without prior additional averaging mechanism; aims for greater transparency.
Average historical difference between old and new index prices was 0.08% for period 2019–2021.
New Index License Agreement with CoinDesk Indices executed; prior 2019 agreement terminated.
Index constituent exchanges and fallback pricing hierarchy remain unchanged.
GAAP NAV continues using Coinbase Pro price; Index Price is non-GAAP and not used in financial statements.

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