From time to time Ripple does its own thing and outperforms other coins, but it does that in both directions. When it loses value it also loses value faster than others. I find it suspicious that it often pumps although you can't even find any relevant news that could explain the pump. That deters me from getting into Ripple.
We know that ripple is a centralized coin so its owners can do whatever they want with it, this is what I think it is happening, after all if you take a look at all the coins on the top 10 right now ripple is one of the least affected, but how this can be true when ripple is not only a bad coin but it is also going through a legal process against the SEC? And the answer is simple, manipulation is so strong on the market that it can even withstand the current drop in the markets.
Ripple is definitely one of the most manipulated coins in the market. How could it be different? The upswings and downswings are suspicious repeatedly, but they get away with it.