So you're saying Kraken is the reason for the pump? I'm going to have to disagree and say that it was all the US investors that "couldn't get in the ICO", because of the "regulations scare".
I realize many ignore that entirely and it's just a formality, but you have a lot of people out there that will follow that quite literally.
I don't think Kraken was the reason for the pump - I think there are a lot more factors at play, but I agree US investors who didn't want to touch the ICO are likely a major component of that.