Cantor n. : A singer; esp. the leader of a church choir; a precentor.

Example:
How do you know a horse is ready to Cantor?

Taxonomy
Cantor, Cantor Fitzgerald, cantor Fitzgerald LP, INVESTMENT BANKING, Cantor Index, NEWSROOM, Clearing Banks, Capital Markets Business, Howard Lutnick, relief Fund, World trade center, private partnership, BGC, SALES AND TRADING, BROKERAGE SERVICES, FEATURED SERVICES, Goncalves, Bloomberg.

Defination from the web:
Broker-dealer specializing in fixed-income securities, institutional equities, derivatives, and foreign stocks.