Solana does not have a fixed max supply of SOL. Instead, what is fixed is the inflation rate YOY . The current total supply is 504,095,110 SOL, with a circulating supply of 296,693,628 SOL as of September 2021 (via Solana). When the Solana network first launched, it had an initial total supply of 500,000,000 SOL.17 Eyl 2021