Perhaps, but these things tend to be priced by the market ahead of the actual event. In other words, we'll all probably have a pretty good idea for how August 1 will go days before it.

This is a good post about Segwit 2x potentially activating by July 23. If that actually happens, August 1 may become a non-event, and the market will already decide how the Bitcoin price will go (probably way up).