Found 2 exchanges where Ondo is traded for BTC. According to the data on 6 September the most optimal price to exchange ONDO for BTC is ₿0.0000047 for 1 Ondo. This rate is fixed at Upbit at the maximum trading volume of the pair ONDO/BTC - 0 BTC.
The maximum daily trading volume is observed in the ONDO/KRW trading pair at Upbit and reaches ₿ 133.8 (6.1% of the exchange's total trading volumes) at the price ₿ 0.0000048 per 1 ONDO.
The minimum price to buy ONDO for BTC is 0.0000047 - on the exchange Upbit.
The maximum price to buy ONDO/BTC is 0.0000048 - on the exchange Upbit Indonesia.