peppomcr: We have added the ability to display market indices in the Stock Quotes List, and you can even mix stocks and indices in the same list. Simply add the index code using the ^ prefix (e.g. ^SPX for S&P 500), along with other stock symbols or market index codes. The stockExchange parameter will only be used for the stocks and ignored for the indices.
For a complete list of market indices currently supported, please visit https://www.stockdio.com/indices. We are constantly adding new indices to our list, so if you don’t see the index you are looking for, please let us know and we will do our best to include it in our service.