Let's start from the monthly chart for Ripple. If you count the waves, Ripple seems to be in its fourth wave correction. If this is true, then we are in Subwave C of the ABC correction of the fourth wave. As a result, we can expect one more lower low. This lower low could easily be in the 0.4-0.38 range before a reversal. Now to access more detail of this Subwave C, you may want to open the weekly chart. You will be able to count the first two of the five correction waves of Subwave C which confirms our assumption of a lower low. Now the question is when - Q3 2018? I leave that to your judgment.
In my opinion xrp can go low as 0.45 $ which is top of wave 1. Cheers