cryhors, you don't want a huge jump in SP? LOL... what are we all here for?
It is sustainable if the company has the goods and is executing on their promises. Look at PLUG on the Nasdaq as just one example. Definitely can be sustainable if its backed up with developments.
What we need is a huge jump sooner than later so that we can get to a respectable valuation reflecting the potential impact of this technology and protect us from a potentially low takeout.