BTS's new album 'Arirang' has reportedly set a new record with significant first-day sales, with some outlets citing a figure of 4 million. The album's release has also broken records on Spotify and is fueling hopes of a K-pop market rebound. The success of 'Arirang' is being seen as a strong comeback for the group, although its impact on the stock price of their management company, Hybe, has been negative.