According to the source, this claim is based on a crypto-media tweet we cannot cite. Please provide an official CME Group announcement or product listing confirming that options on Solana (SOL) and XRP futures have begun trading, including launch date, contract specs, tickers, margin, and eligible venues, so we can deliver a verified, trading-focused summary with actionable implications for liquidity, implied volatility, basis/term structure, and spreads. Acceptable sources include: CME Group press release or product slate page, CME Market Data notices, or CFTC product certification filings.