There is nothing much behind this price increase than the launch of their mainnet launch. Besides, Theta is a solid project backed by a strong community, so that is another plus. If you are a trader and always lose your capital during the market crash, consider KoinPro to safeguard your assets in any market condition.I don't think only mainnet can bring Theta that much energy. There were some rumors that Theta would partner up with a tech giant such as Mircrosoft or Google. If this is true, the official annoucement will be released in a few days ahead. Anyway, I have to admit that Theta is a good coin with a decent community. It's well deserved with a rally.