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  2. Market maker - Wikipedia

    en.wikipedia.org/wiki/Market_maker

    The income of a market maker is the difference between the bid price, the price at which the firm is willing to buy a stock, and the ask price, the price at which the firm is willing to sell it. It is known as the market-maker spread, or bid–ask spread. Supposing that equal amounts of buy and sell orders arrive and the price never changes ...

  3. Bid–ask spread - Wikipedia

    en.wikipedia.org/wiki/Bid–ask_spread

    The bid–ask spread (also bid–offer or bid/ask and buy/sell in the case of a market maker) is the difference between the prices quoted (either by a single market maker or in a limit order book) for an immediate sale and an immediate purchase for stocks, futures contracts, options, or currency pairs in some auction scenario.

  4. Variance swap - Wikipedia

    en.wikipedia.org/wiki/Variance_swap

    The profit and loss from a variance swap depends directly on the difference between realized and implied volatility. [ 6 ] Another aspect that some speculators may find interesting is that the quoted strike is determined by the implied volatility smile in the options market, whereas the ultimate payout will be based upon actual realized variance.

  5. Net capital rule - Wikipedia

    en.wikipedia.org/wiki/Net_capital_rule

    In connection with an investigation into the SEC's role in the collapse of Bear Stearns, in late September, 2008, the SEC's Division of Trading and Markets responded to an early formulation of this position by maintaining (1) it confuses leverage at the Bear Stearns holding company, which was never regulated by the net capital rule, with leverage at the broker-dealer subsidiaries covered by ...

  6. Trading room - Wikipedia

    en.wikipedia.org/wiki/Trading_room

    traders, whose role is to offer the best possible prices to sales, by anticipating market trends. After striking a deal with a sales, the trader arranges a reverse trade either with another trader belonging to another entity of the same institution or to an outside counterparty; market-makers, acting like wholesalers. Trades negotiated by ...

  7. Margin (finance) - Wikipedia

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

    This has the effect of reversing any profit or loss made on the securities. The initial cash deposited by the trader, together with the amount obtained from the sale, serve as collateral for the loan. The net value—the difference between the cash amount and the value of loan security—is initially equal to the amount of one's own cash used.

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    mail.aol.com

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  9. Haircut (finance) - Wikipedia

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

    In finance, a haircut is the difference between the current market value of an asset and the value ascribed to that asset for purposes of calculating regulatory capital or loan collateral. The amount of the haircut reflects the perceived risk of the asset falling in value in an immediate cash sale or liquidation.