If the security of a company is included in the Composite Pricing network, the closing price while listed on NYSE or AMEX on a trading date is the last trading price for that day on the exchange that the security last traded. Similarly, highs, lows, and volumes include trades on all exchanges on which that security traded. For example, if a stock trades on both the NYSE and the PACX (Pacific Stock Exchange), and the last trade occurs on the PACX, the closing price on that day represents the closing price on the PACX, not the NYSE. Price data for Nasdaq securities comes directly from the NASD with the close of the day at 4:00 p.m. Eastern Time. Automated trades after hours on Nasdaq are counted on the next trading date, although the volumes are applied to the current date. Daily trading prices for The Nasdaq National Market securities were first reported November 1, 1982. Daily trading prices for The Nasdaq Small Cap Market were first reported June 15, 1992. prc for Nasdaq securities is always a negative bid/ask average before this time. All prices are raw prices as they were reported at the time of trading.
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