NYSE: SQ Square, Inc. stock price chart

Square, Inc. (Class A) (NYSE: SQ) American financial services, merchant services aggregator, and mobile payment company. It markets software and hardware payments products. The company name "Square" derives from its square-shaped card readers. Founded in 2009 and it launched its first app and service in 2010. Russell 1000 Component. Industry : Financial services, Mobile Payment, Point of sale. Headquarters: San Francisco, California, United States.