I just found some interesting post so i just  test it works like charm

https://www.reddit.com/r/btc/comments/415l41/market_volatility_and_arbitrage_possibilities_at/


Calculation for making almost $1000 with this arbitrage possibility.

*    Buying 30 btc at [Coinbase] https://www.coinbase.com/ (current price: $361)
*    Selling 30 btc at [Bitcoin Magnet] https://www.bitcoinmag.net/ (current price: $394)
*    Total profit: $990 (fees not calculated)