Updating Current Valuations
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· | Stock quotes are delayed by seconds, but reflect only ECNs.
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· | Futures quotes are delayed by about 30 minutes.
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· | Mutual funds
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· | Non-U.S. futures markets
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· | Stocks not covered by live websites
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· | Non-U.S. option markets
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· | Most active U.S. stock quotes are obtained from YAHOO, which captures such information from the Island Exchange almost real time. They show "Y" as the source.
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· | U.S. futures information and information on the pricing of options are obtained from INO.com with a 20-minute delay. These show "I" as the source.
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· | Everything else is updated from CSI's end-of-day database and shows a source code of "C."
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