According to CoinMeta, Backpack has announced that users can now use real stocks as collateral to trade stocks, cryptocurrencies, and other financial instruments across its unified cross-asset portfolio margin accounts. Users can trade stocks and the perpetual contracts of ETF 24/7, borrow dollars for futures trading, or use their stock holdings for margin trading. The stocks currently available for trading include the perpetual contracts of $__BJWKEEP_00003$, $__BJWKEEP_00004$, $__BJWKEEP_00005$, and $__BJWKEEP_00006$, as well as stocks from Micron and Sandisk as collateral. More stocks will be added in the future.