#call_option.option__calloption__call  the option to buy a given stock (or stock index or commodity future) at a given price before a given date
  exclusion:  #put
  supertype:  #option  the right to buy or sell property at an agreed price; the right is purchased and if it is not exercised by a stated date the money is forfeited
  part of:  #straddle__span  the act of sitting or standing astride

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