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.
Basis is used to determine: â¢ the best time to buy or sell. â¢ when to use the futures market to hedge a purchase or sale. â¢ the futures month in which to place a hedge. â¢ when to accept a supplierâs offer or a buyerâs bid.