According to EW theory 4th waves should retrace approximately to the apex of the previous 4th wave of the next lower degree. So if this is a Minor wave 4 of Intermediate wave (5), it should, in theory, retrace to about the price high of the previous subwave of the next lower degree which is green Minute [iv] which was the 780 high. As you can see thats a sharp rally! I would think at least it fills the multiple open chart gaps all the way up to 753. After that, we shall see.