Arkham Crypto Exchange has announced its official launch in the United States on November 20, expanding its spot trading services. This follows its recent availability in Brazil. The platform will provide instant on-chain audits and traceable proof of reserves. Additionally, $SPX perpetual contracts are now live for trading with 10X leverage on multiple platforms including Bitoro HQ, LogX Pro, Sharpe Labs, vooi.io, and WOOFi. Bybit will soon list $SPX on its spot trading platform, with deposits and withdrawals available via the ETH Network.