We know that bitcoin hold is the best process for crypto currency in crypto market, because it’s the best profitable in cryptocurrency world. So i believe that if we hold bitcoin for long time investment, we will be best profitable for us. So i think that bitcoin hold or invest is the best profitable for us. Otherwise if we want to sell in this crypto, we must notice the market prices is high or low. When we saw the market prices is high than i will sell my bitcoin. So i told that selling and hold that's two way is very important for crypto market.