Financial and business terms. 2012.
Ratio spread — The ratio spread is a strategy in options trading that involves buying some number of options and selling a larger number of other options of the same underlying market and (usually) the same expiration date, but of a different strike price.… … Wikipedia
Ratio Call Write — An option strategy in which an investor owns shares in the underlying stock and writes more at the money call options than the amount of underlying shares owned. The goal of a ratio call write is to capture the premiums received by the option… … Investment dictionary
Ratio Spread — An options strategy in which an investor simultaneously holds an unequal number of long and short positions. A commonly used ratio is two short options for every option purchased. A ratio spread would be achieved by purchasing one call option… … Investment dictionary
ratio calendar combination — A strategy consisting of a simultaneous position of a ratio calendar spread using calls and a similar position using puts, where the striking price of the calls is greater that the striking price of the puts . Bloomberg Financial Dictionary … Financial and business terms
ratio spread — Constructed with either puts or calls, the strategy consists of buying a certain amount of options and then selling a larger quantity of more out of the money options. Bloomberg Financial Dictionary … Financial and business terms
ratio backspread — Option strategy which involves two short calls (puts) and one long call ( put). LIFFE … Financial and business terms
Unbeatable strategy — In biology, the idea of an unbeatable strategy was proposed by W.D. Hamilton in his 1967 paper on sex ratios in Science [Hamilton, W.D. (1967). Extraordinary sex ratios. Science 156: 477 488. [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMe… … Wikipedia
Military strategy — This article is about real and historical warfare. For the computer game genre, see Real time tactics. Warfare Military history Eras Prehistoric … Wikipedia
nuclear strategy — ▪ military Introduction the formation of tenets and strategies for producing and using nuclear weapons. Nuclear strategy is no different from any other form of strategy in that it involves relating military means to political ends. In this … Universalium
Air-fuel ratio — (AFR) is the mass ratio of air to fuel present during combustion. When all the fuel is combined with all the free oxygen, typically within a vehicle s combustion chamber,the mixture is chemically balanced and this AFR is called the stoichiometric … Wikipedia
