Currently we provide quotes and price history data for all UK & US listed Exchange Traded Funds (ETFs) listed here - we plan to add more ETF data in due course. We offer some thoughts on ETF selection here.
No, we do not cover Index Funds like the Vanguard Global Small-Cap Index. Index funds have similar characteristics with ETFs like index replications, etc, but they are mutual funds (which we do not cover for the reasons discussed here) in that they are priced once a day after markets close, whereas ETFs are exchange traded and priced throughout the day as long as markets are open. ETFs have lower total expense ratio than index funds.
You can read more about ETFs in our Investing Guides section.