Hyperliquid's dominance in the on-chain perpetual swap market has significantly declined, with its market share dropping from 71% in May to 38%, according to recent data. Emerging platforms Lighter and Aster have capitalized on this shift, increasing their market shares to 16.8% and 14.9%, respectively. The on-chain perpetual swap market is experiencing rapid expansion, with cumulative trading volumes nearing $700 billion over the past month and $42 billion traded in the last 24 hours. The number of protocols has surged from two in 2022 to over 80, highlighting the market's dynamic growth and increasing competition.