Stratis has had a huge run up earlier a few months ago. Lisk only shows how undervalued Stratis is, because Stratis is a much bigger project I believe.
I recommend holding Stratis for atleast a couple months. It will likely rise with the release of the wallet (or atleast leading up to that) but I don't know if it'll go double/triple/etc. just yet, but you never know. There is also talks of Stratis being added to Korean exchanges but thats not confirmed yet.