<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDYvOWFhMWE4NGEtMTY0NC00NGQ5LTgyZTUtOWZkMzk3OGFjZWFhLmpwZw==.jpg"></p><p>Financial services firm T-Rex Group has applied for what could be the “most volatile ETF” ever seen in the United States. </p>