(April 6, 2020, 1:06 PM EDT) -- DENVER — A shareholder on April 3 sued a company that provides oilfield services to the hydraulic fracturing industry seeking to recover damages for violations of the Securities Act of 1933 (Securities Act) after the company’s share price dropped following its initial public offering (IPO) (Marc Joseph v. Liberty Oilfield Services Inc., et al., No. 20-946, D. Colo.)....