Found 3 exchanges where THORChain is traded for BTC. According to the data on 8 August the most optimal price to exchange RUNE for BTC is ₿0.0000069 for 1 THORChain. This rate is fixed at CoinEx at the maximum trading volume of the pair RUNE/BTC - 0.1 BTC.
The maximum daily trading volume is observed in the RUNE/USDT trading pair at CoinTR and reaches ₿ 20.33 (1.28% of the exchange's total trading volumes) at the price ₿ 0.0000069 per 1 RUNE.
The minimum price to buy RUNE for BTC is 0.0000069 - on the exchange CoinEx.
The maximum price to buy RUNE/BTC is 0.000007 - on the exchange KuCoin.