The stock market’s been volatile. Mark Ein thinks that’s good for his latest blank check company

The stock market has seen more than its share of ups and downs over the last year – and serial investor Mark Ein sees that as a net positive for the long-term success of this third “blank check” company. It was just about a year ago that Capitol Acquisition Corp. III (NASDAQ: CLACU) raised $325 million during its initial public offering, as investors bought in to the idea that Ein could pick another winner by investing in or buying outright another yet-to-be-determined business. A “blank…