• When and where free real-time data are available.
• The sources for free real-time data.

Where free real-time data are available -- Free real-time data stream on quote summary pages, and in portfolios under the Real-Time view. In order for free real-time data to stream, Streaming Quotes must be turned on. To learn more, see this help article about Streaming Quotes on Yahoo! Finance.

When free real-time data are available -- Free real-time data are available during market hours 9:30 am to 4:00 pm Eastern Time.

The sources of free real-time data -- Quotes for NYSE, Nasdaq and NYSEAmex are Real Time and sourced from Nasdaq Last Sale when available. If not available from NLS, quotes will appear delayed from their primary listing source. You can see which quotes are in real-time by checking the trading information on quote summary pages, to the right of the last trade price.

Real-Time Quotes

Real-Time Quotes is a premium subscription service that offers our most comprehensive real-time data (available only to U.S.-based customers). A subscription to Real-Time Quotes includes:

• Streaming real-time data direct from the major U.S. exchanges.
• Access to the MarketTracker application, which includes real-time news, charts, and quotes.

To learn more about the premium Real-Time Quotes service and to subscribe, please visit the Real-Time Quotes sign up page.