Decentralised exchange (DEX) tokens have joined the rest of the crypto industry in a deep sell-off. Uniswap (UNI), the biggest DEX in the industry, has retreated to $5.56, down by over 66% from its highest point this year. Similarly, Raydium (RAY), the biggest Solana DEX, has dropped to $1.60, much lower than the year-to-date high