Found 7 exchanges where Polkadot is traded for BTC. According to the data on 30 July the most optimal price to exchange DOT for BTC is ₿0.000012 for 1 Polkadot. This rate is fixed at Koinbazar at the maximum trading volume of the pair DOT/BTC - 5.2 BTC.
The maximum daily trading volume is observed in the DOT/USDT trading pair at BitVenus and reaches ₿ 81.27 (0.506% of the exchange's total trading volumes) at the price ₿ 0.000012 per 1 DOT.
The minimum price to buy DOT for BTC is 0.000012 - on the exchange Koinbazar.
The maximum price to buy DOT/BTC is 0.000013 - on the exchange WhiteBIT.
Внимание: у части рынков DOT аномально широкий спред — такие котировки могут быть ненадёжными (низкая ликвидность или нерыночные сделки). Сверяйтесь с объёмом и несколькими площадками.