Just as easily as XRP can drop 40% in one day, it can also rise 40% in one day:

The price of XRP crashed more than 50% this week after the SEC filed a lawsuit against Ripple — the company closely associated with XRP — along with its executives Brad Garlinghouse and Christian Larsen for selling over $1.3 billion worth of XRP to the public.
As of early morning East Coast time in the U.S., the price of XRP has jumped more than 44%, providing XRP crypto bulls with a much welcomed Christmas gift.