Found 2 exchanges where USDC is traded for BTC. According to the data on 28 July the most optimal price to exchange USDC for BTC is ₿0.000016 for 1 USDC. This rate is fixed at ChangeNOW at the maximum trading volume of the pair USDC/BTC - 29.6 BTC.
The maximum daily trading volume is observed in the USDC/USDT trading pair at Tapbit and reaches ₿ 7,008.07 (55.7% of the exchange's total trading volumes) at the price ₿ 0.000016 per 1 USDC.
The minimum price to buy USDC for BTC is 0.000016 - on the exchange Bithumb.
The maximum price to buy USDC/BTC is 0.000016 - on the exchange ChangeNOW.
Внимание: у части рынков USDC аномально широкий спред — такие котировки могут быть ненадёжными (низкая ликвидность или нерыночные сделки). Сверяйтесь с объёмом и несколькими площадками.