article_snippet.sent: The NYSE's opening and closing bells mark the start and end of each trading day.
article_snippet.sent: the New York Stock Exchange Opening Bell is rung at 9.30am, while the New York Stock Exchange Opening Bell is struck at 4pm.
article_snippet.sent: Historically, many of the bell-ringers have been business executives who actively trade on the New York Stock Exchange, although entertainers, athletes and politicians are sometimes invited to take part as a special guest.
article_snippet.sent: Sometimes, the New York Stock Exchange invite celebrity guests to ring the opening and closing bells .