Needham analyst Laura Martin reiterated her bullish view of Roku Inc. shares on Tuesday, writing that Walt Disney Co.’s planned launch of a dedicated streaming service could be the “next $1 billion upside driver” for the company.

Martin is expecting the fall arrival of Disney+, the new streaming service, to be a key catalyst for Roku’s stock ROKU, -3.37% , with the potential to add $187 million in new revenue for the company in 2024, made up of both subscription revenue and marketing spending from Disney DIS, -3.08% . When Martin discounts this projection to 2020, she calculates revenue value of $135 million for next year and deems that the launch could add almost $1 billion to Roku’s current valuation.