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The stock price S will disappear if we subtract one equation from the other, thus enabling one to exploit a violation of put/call parity without the need to invest in the underlying stock. The subtraction done one way corresponds to a long-box spread; done the other way it yields a short box-spread.
A stop price is the price in a stop order that triggers the creation of a market order. In the case of a Sell on Stop order, a market sell order is triggered when the market price reaches or falls below the stop price. For Buy on Stop orders, a market buy order is triggered when the market price of the stock rises to or above the stop price.
A sell-stop order is an instruction to sell at the best available price after the price goes below the stop price. A sell-stop price is always below the current market price. For example, if an investor holds a stock currently valued at $50 and is worried that the value may drop, they can place a sell-stop order at $40.
A Hasse diagram is a simple picture of a finite partially ordered set, forming a drawing of the partial order's transitive reduction. Concretely, one represents each element of the set as a vertex on the page and draws a line segment or curve that goes upward from x to y precisely when x < y and there is no z such that x < z < y .
A long call ladder consists of buying a call at one strike price and selling a call at each of two higher strike prices, while a long put ladder consists of buying a put at one strike price and selling a put at each of two lower strike prices. [1] A short ladder is the opposite position, in which one option is sold and the other two are bought. [1]
Similarly, in UML, a standard concept-modeling notation used in software development, the activity diagram, which is a type of flowchart, is just one of many different diagram types. Nassi-Shneiderman diagrams and Drakon-charts are an alternative notation for process flow.
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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.