You can long and short 11 crypto assets on Bybit, including BTC, BCH, ADA, ETH, LINK, DOT, EOS, LTC, UNI, XRP, and XTZ. You need BTC, ETH, EOS, or XRP to use as collateral when buying inverse perpetual contracts. But BTC is the underlying asset when buying inverse futures contracts. When it comes to USDT perpetual contracts, USDT serves as the margin when trading BTC, LINK, ADA, ETH, LTC, DOT, BCH, XTZ, and UNI.