Sorry, something has gone wrong. Best Answer: The Enhanced Fujita Scale, or EF Scale, is the scale for rating the strength of tornadoes in the United States estimated via the damage they cause.
DEFINITION of 'Basis Trading'. An arbitrage trading strategy that aims to profit from perceived mispricing of similar securities.
What is Basis. Basis is the difference between the futures price and your local cash price. For example, if the May futures contract is trading at $2.96 and the cash price is $2.63, the cash price is 33 cents under May ($2.63 - 2.96 = -33 cents). So the basis is -33 cents.