Here are the key interactions on how the Instagram feed algorithm works, shared by Adam Mosseri, Head of Instagram.
1. Time spent
Are people going to spend time on your post?
2. Like
What is the likelihood of people liking your posts?
3. Comment
What is the likelihood of people commenting on your post?
4. Save
What is the likelihood of people saving your post?
5. Profile Visit
Are people going to visit your profile after seeing the post?