Found 2 биржи where GMX is traded for ETH. According to the data on 21 April the most optimal price to exchange GMX for ETH is Ξ0 for 1 GMX. This rate is fixed at Uniswap V4 (Arbitrum) at the maximum trading volume of the pair GMX/ETH - 18.4 ETH.
The maximum daily trading volume is observed in the GMX/USDT trading pair at CITEX and reaches Ξ 1,751.11 (0% of the exchange's total trading volumes) at the price Ξ 0.01 per 1 GMX.
The minimum price to buy GMX for ETH is 0 - on the exchange OpenOcean.