There had been many viewpoint about this topic and all ends up with the statement that means no one could still predict it correctly since such predictions are usually being based with historical events. The first thing to consider in answering in this question is, are the stocks and bitcoin correleted? If bitcoin happened to be of any correlation with stocks, a move by stocks also means an opposite or parallel move on the same time frame for bitcoin. But analysts says that there hasn't any data that have showed any clear correlation of the two. But if we will look at how it will affect each other with an attack psychologically, it might have an effect on bitcoin if a major crash happened. For instance, the major crash happened and the investors got scared for their assets and pulled out their money, thatbwill surely affect bitcoin.