BlockBeats News, December 22nd, according to DefiLlama data, the 24-hour trading volume of mainstream Perp DEXs has been below $4 billion, with weekend trading volume showing some weakness. Lighter currently ranks first, followed by Aster and EdgeX. In addition, Hyperliquid has a trading volume of only about $2.4 billion, but the open interest in perpetual contracts continues to rise, with existing funds adding leverage.Lighter has a 24-hour trading volume of about $3.84 billion, a TVL of about $1.41 billion, and open interest of $1.65 billion;Aster has a 24-hour trading volume of about $3.51 billion, a TVL of about $1.3 billion, and open interest of $2.42 billion;EdgeX has a 24-hour trading volume of about $2.45 billion, a TVL of about $370 million, and open interest of $761 million;Hyperliquid has a 24-hour trading volume of about $2.43 billion, a TVL of about $4.15 billion, and open interest of $7.08 billion;ApeX has a 24-hour trading volume of about $1.61 billion, a TVL of about $46.45 million, and open interest of $175 million;Backpack has a 24-hour trading volume of about $1.21 billion, TVL is currently not disclosed, and open interest of $2.32 billion;Variational has a 24-hour trading volume of about $840 million, a TVL of about $66.18 million, and open interest of $4.72 billion;Pacifica has a 24-hour trading volume of about $639 million, a TVL of about $41.89 million, and open interest of $60 million.