I don’t think Chareidism is a movement. You can’t have a movement without organization and leadership that understand it as such. Agudah was a movement. There are and were shuls and organizations that were officially affiliated with an Organization called Agudas Yisroel.
Chareidi is just a descriptive term (whose application is not entirely clear) that applies to some members of the Agudas Yisroel movement, some members of the Yeshivah movement, and some members of the Chasidic movement.