Some Namecoin-fans that don’t want NMC (the first alt and the first BTC fork) to die continue to trade it on some exchanges. You can find it trading on CoinEx (NMC/BTC, NMC/USDT pairs), YoBit(NMC/BTC), SouthXchange (NMC/DASH, NMC/BTC), (Altcointrader NMC/ZAR). Here you’re some graphics: