[Overview of Mainstream Perp DEXs: Market Trends Lead to Decline in Open Interest Across Platforms, Hyperliquid Tops Trading Volume] BlockBeats News, January 20, according to DefiLlama data, over the past 24 hours in Perp DEXs, market downturns have caused a decline in open interest across all platforms. Hyperliquid saw a decrease of approximately 9% compared to yesterday, but its trading volume remains firmly at the top. Current trading volumes for some Perp DEXs are as follows: Hyperliquid: 24-hour trading volume approximately $6.36 billion, TVL approximately $4.57 billion, open interest approximately $8.77 billion; Aster: 24-hour trading volume approximately $4.66 billion, TVL approximately $1.25 billion, open interest approximately $2.61 billion; Lighter: 24-hour trading volume approximately $3.36 billion, TVL approximately $1.07 billion, open interest approximately $1.33 billion; EdgeX: 24-hour trading volume approximately $2.82 billion, TVL approximately $427 million, open interest approximately $1.16 billion; Paradex: 24-hour trading volume approximately $2.72 billion, TVL approximately $226 million, open interest approximately $641 million; Pacifica: 24-hour trading volume approximately $922 million, TVL approximately $46.54 million, open interest $82.95 million.