Spotify is investing heavily in podcasting through acquisitions, original content and product innovation

It is under pressure to reduce dependence on record labels, whose power makes generating large profit margins difficult. Podcasts promise a non-music content genre where Spotify can capture more value

Secondary benefits abound: Spotify can take an active and lucrative role in modernising online audio advertising, it can solve the podcast discovery problem, and engagement across more forms of audio will improve retention

With c.22m accounts across 44m devices, Roku has a US footprint which exceeds the largest pay-TV platforms

Limited competitive advantages highlight the scale of this achievement, but also leave the pioneering firm vulnerable to activities from bigger, wealthier rivals Apple, Amazon, and Google as well as pay-TV providers

The odds are stacked against Roku, but continuing the innovation in production and product that built its lead may secure future success