Found 3 exchanges where Optimism is traded for BTC. According to the data on 29 July the most optimal price to exchange OP for BTC is ₿0.0000015 for 1 Optimism. This rate is fixed at WhiteBIT at the maximum trading volume of the pair OP/BTC - 0.9 BTC.
The maximum daily trading volume is observed in the OP/USDT trading pair at BloFin and reaches ₿ 39.55 (0.477% of the exchange's total trading volumes) at the price ₿ 0.0000014 per 1 OP.
The minimum price to buy OP for BTC is 0.0000014 - on the exchange Upbit.
The maximum price to buy OP/BTC is 0.0000015 - on the exchange WhiteBIT.
Внимание: у части рынков OP аномально широкий спред — такие котировки могут быть ненадёжными (низкая ликвидность или нерыночные сделки). Сверяйтесь с объёмом и несколькими площадками.