Roku (ROKU) investors. Despite a brief boost in the stock price following speculation about a potential merger with The Trade Desk (TTD) —sparked by remarks from a Guggenheim analyst—Roku's performance has lagged behind the broader market.

Guggenheim says Trade Desk and Roku could benefit from a merger. Roku stock gained more than 10% following the investment firm's note.

Shares of Roku and Trade Desk were rising Monday after an analyst suggested the two companies should merge. In a note Monday, Guggenheim analyst Michael Morris keyed in on Trade Desk’s announcement of a new operating system for connected TVs,

Guggenheim suggested that a hypothetical merger between The Trade Desk (NASDAQ:TTD) and Roku (NASDAQ:ROKU) could work to each other's strengths and ambitions TTD and ROKU were up more than 5% in early open market trading on Monday.