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  2. List of largest daily changes in the Nasdaq Composite

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

    Largest intraday percentage drops. An intraday percentage drop is defined as the difference between the previous trading session's closing price and the intraday low of the following trading session. The closing percentage change denotes the ultimate percentage change recorded after the corresponding trading session's close.

  3. List of largest daily changes in the S&P 500 Index - Wikipedia

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

    3 Largest intraday point swings. ... Download QR code; Print/export Download as PDF; ... [1] Largest daily percentage gains [2] Rank Date

  4. Extended-hours trading - Wikipedia

    en.wikipedia.org/wiki/Extended-hours_trading

    [1] After-hours trading is the name for buying and selling of securities when the major markets are closed. [ 2 ] Since 1985, the regular trading hours for major exchanges in the United States, such as the New York Stock Exchange and the Nasdaq stock market, have been from 9:30 a.m. to 4:00 p.m. Eastern Time (ET). [ 3 ]

  5. Interexchange carrier - Wikipedia

    en.wikipedia.org/wiki/Interexchange_carrier

    Each carrier (interexchange or local exchange) is assigned a four-digit identification code, the carrier identification code (CIC) which was used with feature groups. The interexchange carrier to which calls from a subscriber line are routed by default is known as the presubscribed interexchange carrier ( PIC ).

  6. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    Code 1: Respond to the call without lights or sirens. Some agencies may use the terms "upgrade" and "downgrade" to denote an increase or decrease in priority. For example, if a police unit is conducting a Code 1 response to an argument, and the dispatcher reports that the argument has escalated to a fight, the unit may report an "upgrade" to a ...

  7. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    This contrasts with the 607 (Unwanted) SIP response code in which a human, the called party, rejected the call. The intermediary rejecting the call should include a Call-Info header with "purpose" value "jwscard", with the jCard [26] with contact details. The calling party can use this jCard if they want to dispute the rejection.

  8. Day trading - Wikipedia

    en.wikipedia.org/wiki/Day_trading

    Chart of the NASDAQ-100 between 1994 and 2004, including the dot-com bubble. 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 ...

  9. Call detail record - Wikipedia

    en.wikipedia.org/wiki/Call_detail_record

    A call detail record (CDR) is a data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications transactions (e.g., text message) that passes through that facility or device. The record contains various attributes of the call, such as time, duration ...