Riot Platforms is trading 4.34% up at $24.84 after Bitcoin, Ethereum, Solana, and XRP rose more than 4% since the September 18 close, lifting crypto-mining stocks broadly.

  • Bitcoin reached its highest level in more than seven months.
  • Peers including MARA and Hut 8 also advanced.
  • No new company-specific announcement was identified as the September 21 catalyst.