Welcome. Wall Street Training & Advisory, Inc. (WST) is the world's leading provider of financial training and advisory services, serving a wide variety of investment banks, private equity firms, hedge funds, commercial banks, universities, regulatory agencies, credentialing institutes, and more. The New York Stock Exchange (NYSE, nicknamed "The Big Board") is an American stock exchange located at 11 Wall Street, Lower Manhattan, New York City, New York.It is by far the world's largest stock exchange by market capitalization of its listed companies at US$30.1 trillion as of February 2018. The average daily trading value was approximately US$ 169 billion in 2013. ION is reinventing the way business is done through innovations in automation technology. Our software improves decision-making, increases efficiency, simplifies complex processes, and empowers people.