CleanSpark Inc., one of the largest public Bitcoin mining companies in the United States, plans to launch an in-house trading unit this year to maximize returns on its cryptocurrency holdings. “We really think that doing it ourselves is the best way especially with the large Bitcoin balance we have,” Zachary Bradford, chief executive officer of CleanSpark, said in an interview. “It just makes financial sense to do it in-house.” CleanSpark plans to develop strategies based on regulated crypto products, such as options contracts traded on CME or its affiliates.