Found 3 exchanges where Siacoin is traded for BTC. According to the data on 18 July the most optimal price to exchange SC for BTC is ₿0.0000000095 for 1 Siacoin. This rate is fixed at CoinEx at the maximum trading volume of the pair SC/BTC - 0 BTC.
The maximum daily trading volume is observed in the SC/USDT trading pair at Poloniex and reaches ₿ 31.42 (0.284% of the exchange's total trading volumes) at the price ₿ 0.0000000093 per 1 SC.
The minimum price to buy SC for BTC is 0.0000000095 - on the exchange CoinEx.
The maximum price to buy SC/BTC is 0.00000001 - on the exchange Upbit.
Внимание: у части рынков SC аномально широкий спред — такие котировки могут быть ненадёжными (низкая ликвидность или нерыночные сделки). Сверяйтесь с объёмом и несколькими площадками.