If Steem were to go up. Then I it would definitely be a big pump. Steem is currently quite unknown in the general crypto community.
But if Steem manages to crawl to about $15, it will get noticed by a larger public. Who will see a thriving community. With quite some third party apps in development. Pretty good recipe for a investment is you ask me.
So new investors come in, which is going to lift the price even further.