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  2. Open outcry - Wikipedia

    en.wikipedia.org/wiki/Open_outcry

    Open outcry is a method of communication between professionals on a stock exchange or futures exchange, typically on a trading floor. It involves shouting and the use of hand signals to transfer information primarily about buy and sell orders. [ 2 ]

  3. Hand signaling (open outcry) - Wikipedia

    en.wikipedia.org/wiki/Hand_signaling_(open_outcry)

    Hand signalling on the floor of the Chinese Gold and Silver Exchange Society. Hand signaling, also known as arb [1] or arbing (short for arbitrage), is a system of hand signals used on financial trading floors to communicate buy and sell information in an open outcry trading environment.

  4. Manual communication - Wikipedia

    en.wikipedia.org/wiki/Manual_communication

    Diving signalshand communication methods while scuba diving; Flag semaphores — telegraphy systems using hand-held flags, other objects, or the hands themselves; Finger counting. Chinese number gestures; Open outcry hand signaling; Fingerspelling or manual alphabets; Gang signals — signs used to signify allegiance to a gang or local ...

  5. Chicago Mercantile Exchange - Wikipedia

    en.wikipedia.org/wiki/Chicago_Mercantile_Exchange

    The pits can be raised and lowered depending on trading volume. To an onlooker, the open outcry system can look chaotic and confusing, but in reality, the system is a tried and true method of accurate and efficient trading. An illustrated project to record the hand signal language used in CME's trading pits has been compiled. [3]

  6. Occupy movement hand signals - Wikipedia

    en.wikipedia.org/wiki/Occupy_movement_hand_signals

    Occupy movement hand signals, grouped by function. The Occupy movement hand signals are a group of hand signals used by Occupy movement protesters to negotiate a consensus. [1] [2] [3] Hand signals are used instead of conventional audible signals, like applause, shouts, or booing, because they do not interrupt the speaker using the human microphone, a system where the front of the crowd ...

  7. Here’s why you should always open your car door with your ...

    www.aol.com/article/lifestyle/2018/08/16/heres...

    Main Menu. Health

  8. Chicago Board of Trade - Wikipedia

    en.wikipedia.org/wiki/Chicago_Board_of_Trade

    The combination of hand-signals and vocal representation between the way a trader expresses bids and offers is a protection against misinterpretation by other market participants. For historical purposes, an illustrated project to record the hand signal language used in CBOT's trading pits has been compiled and published.

  9. Patten, Heliovaara shrug off contentious 1st set to win ... - AOL

    www.aol.com/foul-call-only-delays-italian...

    Henry Patten and Harri Heliovaara rallied from losing a contentious first set to win the Australian Open men's doubles title 6-7 (16), 7-6 (5), 6-3 over the Italian pairing of Simone Bolelli and ...