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About Charts: Charts show the price and volume action of a particular security or index over a specified time period. The default chart spans a period of one year. The volume section of each chart displays the daily, weekly or monthly trading volume for the particular security or for the component securities in the index. Viewing Charts: There are two ways to view charts on the site: by using the Chart Generator; or by linking to a default one-year chart from various pages. Chart Generator: The Chart Generator lets you:
During trading hours (weekdays, 9:30 a.m. to 4 p.m.), intraday prices are delayed at least 15 minutes for securities that trade on the Nasdaq Exchange and at least 20 minutes for securities that trade on all other exchanges. Intraday prices are updated continuously throughout the trading day. Prices for all other periods are updated once per day, after 7 p.m. EST each trading day. Percentage returns are calculated based on simple capital appreciation and all prices are adjusted for stock splits.  Get help with... Default Chart | Chart Generator | Moving Averages |
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