Found 1 биржа where QSTAR is traded for ETH. According to the data on 2 June the most optimal price to exchange Q* for ETH is Ξ0 for 1 QSTAR. This rate is fixed at Uniswap V4 (Ethereum) at the maximum trading volume of the pair Q*/ETH - 0 ETH.
The maximum daily trading volume is observed in the Q*/WETH trading pair at Uniswap (v2) and reaches Ξ 0.2 (2.19% of the exchange's total trading volumes) at the price Ξ 0 per 1 Q*.