The Subscribers Growth metric reflects the number of people subscribed to the YouTube channel in a given period.
Sometimes the number of subscribers on a particular day could be negative. YouTube regularly verifies the legitimacy of the accounts and actions on all YouTube channels to ensure that metrics are free of spam, abuse, and closed accounts.
For marketers and brands, Subscribers Growth is a key signal of a creator's channel momentum. A consistently positive trend suggests the channel is actively attracting new audiences, making it a strong candidate for campaign partnerships. A flat or declining trend, on the other hand, may indicate audience disengagement.