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  2. New York Stock Exchange - Wikipedia

    en.wikipedia.org/wiki/New_York_Stock_Exchange

    Following the 2011 rule change, at the start of each trading day, the NYSE sets three circuit breaker levels at levels of 7% (Level 1), 13% (Level 2), and 20% (Level 3) of the average closing price of the S&P 500 for the preceding trading day. Level 1 and Level 2 declines result in a 15-minute trading halt unless they occur after 3:25 pm, when ...

  3. List of largest daily changes in the Dow Jones Industrial Average

    en.wikipedia.org/wiki/List_of_largest_daily...

    The New York Stock Exchange reopened that day following a nearly four-and-a-half-month closure since July 30, 1914, and the Dow in fact rose 4.4% that day (from 71.42 to 74.56). However, the apparent decline was due to a later 1916 revision of the Dow Jones Industrial Average, which retroactively adjusted the values following the closure but ...

  4. 2010 flash crash - Wikipedia

    en.wikipedia.org/wiki/2010_Flash_Crash

    The combined average daily trading volume in the New York Stock Exchange and Nasdaq Stock Market in the first four months of 2011 fell 15% from 2010, to an average of 6.3 billion shares a day. Trading activities declined throughout 2011, with April's daily average of 5.8 billion shares marking the lowest month since May 2008.

  5. Stock market - Wikipedia

    en.wikipedia.org/wiki/Stock_market

    The process is similar to the New York Stock Exchange. One or more NASDAQ market makers will always provide a bid and ask the price at which they will always purchase or sell 'their' stock. The Paris Bourse, now part of Euronext, is an order-driven, electronic stock exchange. It was automated in the late 1980s.

  6. Why Is Purple Biotech Stock Trading Higher On Monday? - AOL

    www.aol.com/finance/why-purple-biotech-stock...

    The median progression-free survival was 3.9 months versus 2.0 months. The overall response rate was 25% versus 7%, and the disease control rate was 63% compared to 47% in the CM24 combo arm vs ...

  7. Volume (finance) - Wikipedia

    en.wikipedia.org/wiki/Volume_(finance)

    The average volume of a security over a longer period of time is the total amount traded in that period, divided by the length of the period. Therefore, the unit of measurement for average volume is shares per unit of time, typically per trading day. The volume of trade is a measure of the market's activity and liquidity during a set period of ...

  8. Market data - Wikipedia

    en.wikipedia.org/wiki/Market_data

    volume 7808 The above example is an aggregation of different sources of data, as quote data (bid, ask, bid size, ask size) and trade data (last sale, last size, volume) are often generated over different data feeds.

  9. McClellan oscillator - Wikipedia

    en.wikipedia.org/wiki/McClellan_Oscillator

    By applying 19-day and 39 day EMAs to the difference between advances and declines we define shorter-term (19-day) and longer-term (39-day) Breadth sentiment. By calculating McClellan Oscillator as the difference between 19-day EMA and 39-day EMA of advances minus declines, we apply MACD principle to Breadth sentiment - to see changes in ...