Found 2 exchanges where Numeraire is traded for BTC. According to the data on 20 July the most optimal price to exchange NMR for BTC is ₿0.00016 for 1 Numeraire. This rate is fixed at Upbit Indonesia at the maximum trading volume of the pair NMR/BTC - 0.1 BTC.
The maximum daily trading volume is observed in the NMR/TRY trading pair at Paribu and reaches ₿ 21.66 (1.08% of the exchange's total trading volumes) at the price ₿ 0.00015 per 1 NMR.
The minimum price to buy NMR for BTC is 0.00015 - on the exchange Upbit.
The maximum price to buy NMR/BTC is 0.00016 - on the exchange Upbit Indonesia.