Holiday trading schedules: Nasdaq and NYSE

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CME Group holidays for 2009 and 2010:
http://www.cmegroup.com/tools-information/holiday-calendar/index.html
NYSE 2009 and 2010 holidays:
http://www.nyse.com/about/newsevents/1176373643795.html
Nasdaq 2009 and 2010 holidays:
http://www.nasdaq.com/about/schedule.stm
http://www.nasdaqtrader.com/Trader.aspx?id=Calendar
Expiration calendar for NYSE Liffe Precious metals:
http://www.nyse.com/futuresoptions/nyseliffe/1247495974064.html
Expiration calendar for CME:
http://www.cmegroup.com/trading/calendar/index.html