Notice from NYSE Euronext below. Several other exchanges will likely follow suit.
Before the trading day begins tomorrow, September 11, 2013, the New York Stock Exchange community will observe a one-minute moment of silence in remembrance of the NYSE and NYSE MKT members and the thousands of others who lost their lives on 9/11. The moment of silence will begin with a single stroke of the NYSE bell at 9:25 a.m. (ET).
Before the trading day begins tomorrow, September 11, 2013, the New York Stock Exchange community will observe a one-minute moment of silence in remembrance of the NYSE and NYSE MKT members and the thousands of others who lost their lives on 9/11. The moment of silence will begin with a single stroke of the NYSE bell at 9:25 a.m. (ET).