Kalshi added perpetual contracts tied to BNB, ADA, WLD, AAVE and VVV for U.S. trading.The contracts use U.S. dollar margin, have no expiration and permit long or short positions.Maximum leverage varies by product, reaching 4.5 times for BNB and 1.9 times for VVV.Kalshi now offers Bitcoin and seventeen altcoin perpetuals, according to its current product listings online.The CFTC filing process does not necessarily represent an affirmative commission vote approving each contract.