Found 1 exchange where io.net is traded for BTC. According to the data on 29 August the most optimal price to exchange IO for BTC is ₿0.0000017 for 1 io.net. This rate is fixed at WhiteBIT at the maximum trading volume of the pair IO/BTC - 1 BTC.
The maximum daily trading volume is observed in the IO/USDT trading pair at WhiteBIT and reaches ₿ 4.74 (0.0468% of the exchange's total trading volumes) at the price ₿ 0.0000018 per 1 IO.
The minimum price to buy IO for BTC is 0.0000017 - on the exchange WhiteBIT.
The maximum price to buy IO/BTC is 0.0000017 - on the exchange WhiteBIT.
Warning: some IO markets show an abnormally wide spread — those quotes may be unreliable (thin liquidity or off-market trades). Cross-check the volume against several venues.