@HyperliquidX has ~5x the open interest of @Aster_DEX, and more than @variational_io and @Lighter_xyz combined. I think its established trading ecosystem explains a lot of this. Shared collateral and builder-deployed markets give traders more reasons to stay. In addition, liquidity attracts liquidity so when you're trading size, entering and exiting without moving the price matters, so switching platforms needs a real benefit. Personally, I also think they nailed the UX: fast and easy to use, which goes a long way when you're on it every day. Which perp DEX are you using the most right now?