Cantor Fitzgerald CEO Howard Lutnick said the most important thing to him on each Sept. 11 is very simple.
"It's the number. People say, 'Well, what do you mean by the number?' The number of money we're going to give to families," Lutnick said in a CNBC "Squawk on the Street" interview at the company's 9/11 Charity Day event.
The company created the event as a way to remember the 658 Cantor employees who lost their lives during the terrorist attacks on the World Trade Center 14 years ago. The event is also designed to collect donations for a number of different charities and to help support the families affected by the attacks.