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Delivery of price data from exchanges to users is highly time-sensitive. Specialized software and hardware systems called ticker plants are designed to handle collection and throughput of massive data streams, displaying prices for traders and feeding computerized trading systems fast enough to capture opportunities before markets change.
Before 2010, the ticker (trading) symbols for US options typically looked like this: IBMAF. This consisted of a root symbol ('IBM') + month code ('A') + strike price code ('F'). The root symbol is the symbol of the stock on the stock exchange.
The bid-ask ticker contained only the two prices and no size. The volume of data on the last sale ticker was therefore much greater than on the bid-ask ticker. Because of this, on high volume days the last sale ticker would run as much as fifteen minutes behind the bid-ask ticker.
A ticker symbol or stock symbol is an abbreviation used to uniquely identify publicly traded shares of a particular stock or security on a particular stock exchange. Ticker symbols are arrangements of symbols or characters (generally Latin letters or digits) which provide a shorthand for investors to refer to, purchase, and research securities.
Ticker tape was the earliest electrical dedicated financial communications medium, transmitting stock price information over telegraph lines, in use from around 1870 to 1970. It consisted of a paper strip that ran through a machine called a stock ticker , which printed abbreviated company names as alphabetic symbols followed by numeric stock ...
A financial quotation refers to specific market data relating to a security or commodity.While the term quote specifically refers to the bid price or ask price of an instrument, it may be more generically used to relate to the last price which this security traded at ("last sale"). [1]
Tick sizes can be fixed (e.g., USD 0.0001) or vary according to the current price (common in European markets) with larger increments at higher prices. Heavily-traded stocks are given smaller tick sizes. An instrument price is always a rational number and the tick sizes determine the numbers that are permissible for a given instrument and exchange.
where F is the current (time t) cost of establishing a futures contract, S is the current price (spot price) of the underlying stock, r is the annualized risk-free interest rate, t is the present time, T is the time when the contract expires and PV(Div) is the Present value of any dividends generated by the underlying stock between t and T.