Bitcoin (BTC) price abruptly dropped 4.9% from $9,800 to $9,324 after rejecting at a key resistance level again, is it a buy the dip opportunity? 
It is, and in my experience, a drop is another opportunity for a future profit but be sure that you invest what you can afford to lose because it's not every time that the price will go up immediately, sometimes it will take some time so it's better that you are comfortable in your investment, don't be tempted to put all your savings.