BlockBeats News, December 15th, according to DefiLlama data, in the past 24 hours, the trading volume of mainstream Perp DEX has experienced a significant decline, all falling below 5 billion USD. Aster's trading volume currently ranks first, with Pacifica experiencing a counter-trend increase. At the same time, most platforms have seen limited changes in open interest for perpetual contracts, with Hyperliquid seeing a slight increase. The current trading volume of some Perp DEXs is as follows:Aster 24-hour trading volume is approximately 49.5 billion USD, TVL is about 13.4 billion USD, and open interest is 25.7 billion USD;Lighter 24-hour trading volume is approximately 48.3 billion USD, TVL is about 14.5 billion USD, and open interest is 17.4 billion USD;Hyperliquid 24-hour trading volume is approximately 31.8 billion USD, TVL is about 44.4 billion USD, and open interest is 73.3 billion USD;EdgeX 24-hour trading volume is approximately 28.7 billion USD, TVL is about 3.98 billion USD, and open interest is 7.96 billion USD;ApeX 24-hour trading volume is approximately 24.3 billion USD, TVL is about 46.47 million USD, and open interest is 87.94 million USD;Variational 24-hour trading volume is approximately 12 billion USD, TVL is about 66.18 million USD, and open interest is 3.84 billion USD;Backpack 24-hour trading volume is approximately 10.4 billion USD, TVL is not disclosed at the moment, and open interest is 2.16 billion USD;Pacifica 24-hour trading volume is approximately 9.46 billion USD, TVL is about 41.69 million USD, and open interest is 62.8 million USD.