Found 2 exchanges where NKN is traded. As of 4 August, the best price to buy NKN — Ξ0.0000029 — is on Coinbase Pro, the venue with the highest trading volume for the NKN/USD pair (21.1 ETH).
The maximum daily trading volume is observed in the NKN/USD trading pair at Coinbase Pro and reaches Ξ 21.15 (0.0073% of the exchange's total trading volumes) at the price Ξ 0.0000029 per 1 NKN.