CoinEx News: Cardano drew renewed ETF attention on May 9 after market commentary suggested Grayscale could pursue a dedicated ADA product later in 2026, with the argument tied to CME ADA futures that began trading on February 9. Grayscale filed an S-1 for the Grayscale Cardano Trust ETF in August 2025 and amended it in October, while NYSE Arca's earlier 19b-4 rule-change file was marked withdrawn on September 29, 2025.