2. The Relationship-Weighted Algorithm

Instagram's algorithm is heavily "relationship-weighted." This means it first shows your Reel to a small subset of your most engaged followers—the people who frequently like, comment on, and save your posts. The performance within this "golden hour" cohort is critical. If your core audience engages heavily with the Reel (high watch time, likes, and sends), the algorithm interprets this as a strong signal of quality and begins pushing it out to a broader audience of "lookalike" users who share similar interests but don't yet follow you. Strong initial engagement from your existing fans is the fuel for wider discovery.