Found 3 exchanges where Cronos is traded for BTC. According to the data on 4 August the most optimal price to exchange CRO for BTC is ₿0.00000084 for 1 Cronos. This rate is fixed at Crypto.com at the maximum trading volume of the pair CRO/BTC - 0.4 BTC.
The maximum daily trading volume is observed in the CRO/USDT trading pair at BitMart and reaches ₿ 49.41 (0.232% of the exchange's total trading volumes) at the price ₿ 0.00000085 per 1 CRO.
The minimum price to buy CRO for BTC is 0.00000084 - on the exchange Crypto.com.
The maximum price to buy CRO/BTC is 0.00000085 - on the exchange CoinEx.