eligibility for inclusion. The company publishes its full methodology details on its .

* Universe: All constituents from the S&P 500, S&P MidCap 400, and S&P SmallCap 600 are included in the index.
* Eligibility Market Cap: Companies with unadjusted market cap of US$22.7 billion or greater for the S&P 500, US$8.0 billion to US$22.7 billion for the S&P MidCap 400, and US$1.2 billion to US$8.0 billion for the S&P