According to DefiLlama data, on March 16th, Perp DEX trading volume was generally sluggish over the weekend, but open interest continued to rise across all platforms. Hyperliquid and Aster remained the top two in trading volume, with Hyperliquid's open interest hitting a near one-month high again. The top DEXs by trading volume are as follows: Hyperliquid: approximately $3.89 billion in 24-hour trading volume, with approximately $6.71 billion in open interest; Aster: approximately $1.97 billion in 24-hour trading volume, with approximately $2.04 billion in open interest; EdgeX: approximately $1.77 billion in 24-hour trading volume, with approximately $1.11 billion in open interest; Lighter: approximately $1.22 billion in 24-hour trading volume, with approximately $708 million in open interest; Apex: approximately $1.1 billion in 24-hour trading volume, with approximately $120 million in open interest; Pacifica: approximately $229 million in 24-hour trading volume, with approximately $75.68 million in open interest.