Many indices have well publicized "index methodology" which describes how companies are added and deleted. For the most part, the rules are quite linear and det

Many indices have well publicized "index methodology" which describes how companies are added and deleted. For the most part, the rules are quite linear and deterministic... But sometimes a human index committee has to meet to make decisions. https://us.spindices.com/documents/methodologies/methodology-sp-us-indices.pdf https://us.spindices.com/documents/methodologies/methodology...