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.
Day trading is a form of speculation in securities in which a trader buys and sells a financial instrument within the same trading day, so that all positions are closed before the market closes for the trading day to avoid unmanageable risks and negative price gaps between one day's close and the next day's price at the open. Traders who trade in this capacity are generally classified as speculators. Day trading contrasts with the long-term trades underlying buy-and-hold and value investing strategies. Day trading may require fast trade execution, sometimes as fast as milli-seconds in scalping, therefore direct-access day trading software is often needed.
Algorithmic trading is a method of executing orders using automated pre-programmed trading instructions accounting for variables such as time, price, and volume. This type of trading attempts to leverage the speed and computational resources of computers relative to human traders. In the twenty-first century, algorithmic trading has been gaining traction with both retail and institutional traders. A study in 2019 showed that around 92% of trading in the Forex market was performed by trading algorithms rather than humans.
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.
Options Clearing Corporation (OCC) is a United States clearing house based in Chicago. It specializes in equity derivatives clearing, providing central counterparty (CCP) clearing and settlement services to 16 exchanges. Started by Wayne Luthringshausen and carried on by Michael Cahill. Its instruments include options, financial and commodity futures, security futures, and securities lending transactions.
Intercontinental Exchange, Inc. (ICE) is an American company formed in 2000 that operates global financial exchanges and clearing houses and provides mortgage technology, data and listing services. Listed on the Fortune 500, S&P 500, and Russell 1000, the company owns exchanges for financial and commodity markets, and operates 12 regulated exchanges and marketplaces. This includes ICE futures exchanges in the United States, Canada and Europe, the Liffe futures exchanges in Europe, the New York Stock Exchange, equity options exchanges and OTC energy, credit and equity markets.
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 Knight Capital Group was an American global financial services firm engaging in market making, electronic execution, and institutional sales and trading. With its high-frequency trading algorithms Knight was the largest trader in U.S. equities, with a market share of 17.3% on NYSE and 16.9% on NASDAQ. The company agreed to be acquired by Getco LLC in December 2012 after an August 2012 trading error lost $460 million. The merger was completed in July 2013, forming KCG Holdings.
The May 6, 2010, flash crash, also known as the crash of 2:45 or simply the flash crash, was a United States trillion-dollar flash crash which started at 2:32 p.m. EDT and lasted for approximately 36 minutes.
Direct Edge was a Jersey City, New Jersey-based stock exchange operating two separate platforms, EDGA Exchange and EDGX Exchange.
Invesco PowerShares is an American boutique investment management firm based near Chicago which manages a family of exchange-traded funds or ETFs. The company has been part of Invesco, which markets the PowerShares product, since 2006.
Virtu Financial is an American company that provides financial services, trading products and market making services. Virtu provides product suite including offerings in execution, liquidity sourcing, analytics and broker-neutral, multi-dealer platforms in workflow technology and two-sided quotations and trades in equities, commodities, currencies, options, fixed income, and other securities on over 230 exchanges, markets, and dark pools. Virtu uses proprietary technology to trade large volumes of securities. The company went public on the Nasdaq in 2015.
Brad Keywell is an American entrepreneur. He is the founder and executive chairman of Uptake Technologies, an industrial AI software provider. He is a early investor of Tempus Labs, co-founder of Groupon, Echo Global Logistics, Mediaocean, DRIVIN, and Lightbank. He is the founder of WNDR Museum and Chicago Ideas. As of December 2021, his net worth was estimated at US$ 2.7 billion. Keywell is the recipient of the 2019 EY World Entrepreneur Of The Year award, after receiving the overall USA EY Entrepreneur of the Year award in 2018.
KCG Holdings, Inc. was an American global financial services firm engaging in market making, high-frequency trading, electronic execution, and institutional sales and trading. The company was formed on July 1, 2013, upon the completion of the merger between Knight Capital Group, Inc. and GETCO Holding Company, LLC. Global growth equity firm General Atlantic, who had a 25% stake in GETCO, made an additional equity investment at the time of the merger. Rene Kern, managing director at General Atlantic joined the board of directors
Edgar Perez is an American-Peruvian business author, keynote speaker and corporate trainer who has spoken at a number of academic and professional institutions. He is the author of The Speed Traders and Knightmare on Wall Street, and has been interviewed internationally on the topics of artificial intelligence and deep learning, quantum computing, cybersecurity and high-frequency trading. He currently lives in New York City.
Interactive Brokers LLC (IB) is an American multinational brokerage firm. It operates the largest electronic trading platform in the United States by number of daily average revenue trades. The company brokers stocks, options, futures, EFPs, futures options, forex, bonds, funds, and some cryptocurrencies.
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.
Citadel Securities is an American market making firm headquartered in Miami. It is one of the largest market makers in the world, and is active in more than 50 countries. It is the largest designated market maker on the New York Stock Exchange. Citadel Securities is a separate entity from the hedge fund Citadel LLC, although both were founded and are majority owned by American hedge fund manager Kenneth C. Griffin. Citadel Securities is expected to eventually move its headquarters from Chicago to Miami, having bought land there to build its new headquarters.
A securities information processor (SIP) is a part of the infrastructure of public market data providers in the United States that process, consolidate, and disseminate quotes and trade data from different US securities exchanges and market centers. An important purpose of the SIPs for US securities is to publish the prevailing National Best Bid Offer (NBBO).
