NYSE American, formerly known as the American Stock Exchange (AMEX), and more recently as NYSE MKT, is an American stock exchange situated in New York City. AMEX was previously a mutual organization, owned by its members. Until 1953, it was known as the New York Curb Exchange.
The Nasdaq Stock Market is an American stock exchange based in New York City. It is the most active stock trading venue in the US by volume, and ranked second on the list of stock exchanges by market capitalization of shares traded, behind the New York Stock Exchange. The exchange platform is owned by Nasdaq, Inc., which also owns the Nasdaq Nordic stock market network and several U.S.-based stock and options exchanges.
The New York Stock Exchange is an American stock exchange in the Financial District of Lower Manhattan in New York City. It is the largest stock exchange in the world by market capitalization.
The Standard and Poor's 500, or simply the S&P 500, is a stock market index tracking the stock performance of 500 of the largest companies listed on stock exchanges in the United States. It is one of the most commonly followed equity indices and includes approximately 80% of the total market capitalization of U.S. public companies.
The Pacific Exchange was a regional stock exchange in California, from 1956 to 2006. Its main exchange floor and building were in San Francisco, California, with a branch building in Los Angeles, California.
NYSE Chicago, formerly known as the Chicago Stock Exchange (CHX), is a stock exchange in Chicago, Illinois, US. The exchange is a national securities exchange and self-regulatory organization, which operates under the oversight of the U.S. Securities and Exchange Commission (SEC). Intercontinental Exchange (ICE) acquired CHX in July 2018 and the exchange rebranded as NYSE Chicago in February 2019.
Euronext N.V. is a pan-European bourse that provides trading and post-trade services for a range of financial instruments.
An exchange-traded fund (ETF) is a type of investment fund that is also an exchange-traded product, i.e., it is traded on stock exchanges. ETFs own financial assets such as stocks, bonds, currencies, debts, futures contracts, and/or commodities such as gold bars. The list of assets that each ETF owns, as well as their weightings, is posted on the website of the issuer daily, or quarterly in the case of active non-transparent ETFs. Many ETFs provide some level of diversification compared to owning an individual stock.
NYSE Euronext, Inc. was a transatlantic multinational financial services corporation that operated multiple securities exchanges, including the New York Stock Exchange, Euronext and NYSE Arca. NYSE merged with Archipelago Holdings on March 7, 2006, forming NYSE Group, Inc. On April 4, 2007, NYSE Group, Inc. merged with Euronext N.V. to form the first global equities exchange, with its headquarters in Lower Manhattan. The corporation was then acquired by Intercontinental Exchange, which subsequently spun off Euronext.
The Consolidated Tape Association (CTA) oversees the Securities Information Processor that disseminates real-time trade and quote information in New York Stock Exchange (NYSE) and American Stock Exchange (AMEX) listed securities. It is currently chaired by Emily Kasparov of the Chicago Stock Exchange, the first woman and the youngest chair elected to the position.
Gerald Putnam is an American businessman. He started Archipelago Holdings, an electronic communication network, in 1999. In 2006; it was acquired by the NYSE for almost $3 billion. Putnam was selected as one of the innovators of 21st century by Time magazine.
The Options Price Reporting Authority (OPRA) oversees the Securities Information Processor (SIP) that provides last sale information and current options quotations from a committee of participant exchanges. In turn, this committee is designated as the Options Price Reporting Authority.
High-frequency trading (HFT) is a type of algorithmic trading in finance characterized by high speeds, high turnover rates, and high order-to-trade ratios that leverages high-frequency financial data and electronic trading tools. While there is no single definition of HFT, among its key attributes are highly sophisticated algorithms, co-location, and very short-term investment horizons in trading securities. HFT uses proprietary trading strategies carried out by computers to move in and out of positions in seconds or fractions of a second.
The May 6, 2010, flash crash, also known as the crash of 2:45 or simply the flash crash, was a United States trillion-dollar flash crash which started at 2:32 p.m. EDT and lasted for approximately 36 minutes.
The Global Electronic Trading Company (GETCO), or Getco LLC, is an American proprietary algorithmic trading and electronic market making firm based in Chicago, Illinois. In December 2012, the firm agreed to acquire Knight Capital Group; this merger was completed in July 2013, forming the new company KCG Holdings.
Virtu Financial is an American company that provides financial services, trading products and market making services. Virtu provides product suite including offerings in execution, liquidity sourcing, analytics, broker-neutral, multi-dealer platforms in workflow technology and two-sided quotations and trades in equities, commodities, currencies, options, fixed income, and other securities on over 230 exchanges, markets, and dark pools. Virtu uses proprietary technology to trade large volumes of securities. The company went public on the Nasdaq in 2015.
The SPDR S&P 500 ETF trust is an exchange-traded fund which trades on the NYSE Arca under the symbol SPY. SPDR is an acronym for the Standard & Poor's Depositary Receipts, the former name of the ETF. It is designed to track the S&P 500 stock market index. This fund is the largest and oldest ETF in the USA. SPDR is a trademark of Standard and Poor's Financial Services LLC, a subsidiary of S&P Global. The ETF's CUSIP is 78462F103 and its ISIN is US78462F1030. The trustee of the SPDR S&P 500 ETF Trust is State Street Bank and Trust Company. The fund has a net expense ratio of 0.0945%.
For three hours on August 22, 2013, trading was halted on the Nasdaq Stock Market. Trading on the exchange stopped at 12:14 pm and resumed at 3:25 pm, with 35 minutes left of trading for the day. One week after the trading halt NASDAQ OMX credited the freeze to an overloading of the Securities Information Processor (SIP) caused by reconnection issues with the New York Stock Exchange Arca. The freeze received substantial media coverage and generated discussions on the security of increasingly technologically advanced stock exchanges. The event coined the term "flash freeze" following the earlier "flash crash" on May 6, 2010.
