We are proud to share a video recording of our October News & Views companion online discussion forum! Join us for our annual update on the volume and revenue associated with Open Access publishing. If you missed the session, or if you attended and would like to watch/listen again, or share forward with friends, please feel free!

Overview After a rocky couple of years, the open access (OA) market may be finding its footing again. Each year, Delta Think's Market Sizing analyzes the value of the OA scholarly journals market—that is, the revenue generated by providers or the costs incurred by buyers of content. Our analysis estimates that the OA segment expanded to just under $2.4bn in 2024. Although growth has improved compared with last year’s deceleration, it continues to lag behind the broader historical trend for OA. The proportion of articles published as OA has declined slightly, likely driven by continued reduction in the output from the large OA publishers. This trend has benefited established publishers, who saw growth in OA activity and revenue as they continued to consolidate their positions. Looking ahead, OA could soon begin outpacing the broader journals market once again—but likely through different growth drivers than in the past. Read on to see what those shifts might look like. Headline findings Our models suggest the following headlines for the 2024 open access market: