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our portfolio now contains 164 shares of microsoft. it looks like the
change for the day has been down $1.12. our "up to the minute" portfolio
is calculated here. notice that the value is down $25 from the origional
$10,000 because that was the price of the trade. if the user checks back
later, the portfolio total will go up and down as the stock fluctuates. stock quotes are updated from the real stock market once every 5 minutes during the trading day. the market feed comes from various web based delayed quotes services including fidelity, yahoo and the motley fool. let's logout and see how the underlying system works. the user clicks [ logout ]...
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