Dennis is the Director of ETF & Closed-End Fund Strategy at ALPS. He is widely recognized as an expert in the field and has been cited for both his closed-end as well as ETF work in numerous publications such as The Wall Street Journal, Barron's, Investor's Business Daily, and Mutual Funds Magazine.

Prior to joining ALPS Dennis was a Managing Director and the head of Citigroup's ETF & Closed-End Fund Research group. Before joining Citigroup Dennis worked at Merrill Lynch as its Senior Bond Fund Analyst in its Closed-End Fund Research department. He received a BBA Degree in Marketing from Pace University and an MBA in Finance & Management Information Systems from Syracuse University.