CSMI is a market data service provided by Cboe Global Markets that delivers index values on over 500 products. Featured values from Cboe include SPX and the VIX Spot. Additional products include values offered by Standard & Poor's, FTSE Russell, Gemini, Merrill Lynch, Miller Howard, MSCI and Societe Generale.
A full list of indices covered by CBOE CSMI can be found here.
Please note as of January 8, 2019 the following Index values are no longer disseminating over the CSMI feed:
Nasdaq 100 Settlement Value - Symbol: ^NDS
Mini-NDX Index - Symbol: ^XMS