 Shares of Tortoise Acquisition NYSE: SHLL were moving higher on Monday. The special purpose acquisition company released second-quarter financial information for electric-truck powertrain maker Hyliion, the company it plans to merge with later this year, in a regulatory filing after the market closed on Friday. As of 11:30 a.m. EDT, Tortoises shares were up about 10.1 from Fridays closing price. 