Maybe because XRP is one of the leading coins in the crypto currency because this coins is rank 4 as of now, thus many people keep buying that coons because of that, maybe they thought that they can make more income if they are going to invest now in the XRP because of its price that still going better.
fundamentally Ripple is good enough and right now Ripple will face a lawsuit by the SEC. Indeed, 6 months ago they had received negative sentiment because of the issue regarding the SEC. However, currently in a bullish market condition, Ripple is still on the rise. especially later if they win over the allegations made by the SEC, I am pretty sure the increase that will occur must be quite high