Centralized companies jumped on the bandwagon. You know it is a bubble when the most conservative market gets pumped on blockchain news)
That said, I have a feeling Ripple will be but one of many growing, centralized companies as more careful and conservative investors seek comfort in familiar stocks that join the blockchain craze. In my opinion, this is proof that there is big money that wants to get a piece of this lucrative crypto-pie but don't want to get involved into something they don't understand (Warren Buffett comes to mind).