Perp DEX mark price fidelity: deviation from CEX spot reference, live

dYdX v4 posts the lowest mark price deviation at 0.017% (24h avg) on Perp DEX mark price fidelity: deviation from CEX spot reference, live. Median absolute deviation in basis points between each venue's mark price and a Binance spot reference, measured every 60 seconds on ETH, BTC and SOL. Lower means the venue's mark price stays closer to the CEX spot consensus. Oracle-priced venues use a real-time price feed anchored to CEX spot; orderbook venues derive their mark from their own book.