$ETHA vs $SSK: Contrasting Ether and Solana ETF Strategies for Investors ETHA provides direct exposure to ether (ETH) through a passive grantor trust structure with a low 0.25% expense ratio, while SSK targets Solana (SOL) performance plus staking rewards through a more complex structure with a 0.75% expense ratio. ETHA holds essentially one primary asset (ether), offering pure price tracking, whereas SSK incorporates staking mechanisms and may allocate to related exchange-traded products for yield generation.