As for what may be the cause of this, it’s no secret the network’s miniseries Chernobyl has captured quite a few headlines for its quality, and acclaimed shows like Big Little Lies may have people holding onto their subscriptions just a bit longer as well.
It could also reflect the same results on a larger scale, and show that HBO is doing better at retaining new subscribers following a season of Game of Thrones than it has in the past.