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  2. Thinkorswim - Wikipedia

    en.wikipedia.org/wiki/Thinkorswim

    Thinkorswim, Inc. was founded in 1999 by Tom Sosnoff and Scott Sheridan as an online brokerage specializing in options. [2] It was funded by Technology Crossover Ventures. [3] In February 2007, Investools acquired Thinkorswim. [4] In January 2009, it was acquired by TD Ameritrade in a cash and stock deal valued around $606 million.

  3. Tom Sosnoff: A Q&A with the $600 million man behind Thinkorswim

    www.aol.com/news/2009-11-08-tom-sosnoff-a-qanda...

    Sosnoff, who spent 10 years as an options-market maker at the Chicago Mercantile Exchange, created Thinkorswim in 1999 and sold it this year to TD Ameritrade for more than $600 million.

  4. TD Ameritrade - Wikipedia

    en.wikipedia.org/wiki/TD_Ameritrade

    In 1988, the company introduced the first quote and order entry system via the push-button telephone. [3] In March 1997, the company became a public company via an initial public offering. [4] In 2006, Ameritrade purchased the American operations of TD Waterhouse from TD Bank Group. The combined company was renamed TD Ameritrade, and TD Bank ...

  5. Market order vs. limit order: How they differ and which type ...

    www.aol.com/finance/market-order-vs-limit-order...

    A market order instructs your broker to execute your trade of a security at the best available price at the moment you send in your order. If you’re buying, you’ll transact at the seller’s ...

  6. Order book - Wikipedia

    en.wikipedia.org/wiki/Order_book

    An order book is the list of orders (manual or electronic) that a trading venue (in particular stock exchanges) uses to record the interest of buyers and sellers in a particular financial instrument. A matching engine uses the book to determine which orders can be fully or partially executed.

  7. Market depth - Wikipedia

    en.wikipedia.org/wiki/Market_depth

    In finance, market depth is a real-time list displaying the quantity to be sold versus unit price. The list is organized by price level and is reflective of real-time market activity. Mathematically, it is the size of an order needed to move the market price by a given amount. If the market is deep, a large order is needed to change the price ...

  8. Order flow trading - Wikipedia

    en.wikipedia.org/wiki/Order_flow_trading

    Traders can use Order Flow analysis to see the subsequent impact on the price of the market by these orders and therefore make predictions on the future price and direction of the market. Order flow trading is a type of short term trading strategy as it is used to enter the market accurately based on recent executed buy and sell orders. [2]

  9. Central limit order book - Wikipedia

    en.wikipedia.org/wiki/Central_limit_order_book

    It is a transparent system that matches customer orders (e.g. bids and offers) on a 'price time priority' basis. The highest ("best") bid order and the lowest ("cheapest") offer order constitutes the best market or "the touch" in a given security or swap contract. Customers can routinely cross the bid/ask spread to effect immediate execution.