to an otherwise light-hearted show. all right, let s get down to business with landon dowdy. good monday morning to you. shannon good monday morning. the markets look to build in holiday cheer as stocks come off their best week of the year measured by the s&p 500 index on growing confidence the federal reserve will raise interest rates next month. look for data on existing home sales. pfizer is expected to announce today it s buying botoxmaker allergen for more than $150 billion creating the world s biggest drugmaker and comes after the u.s. government announced rules to curb so-called tax inversions or when a u.s. company relocates its headquarters overseas to get a lower tax rate. it is based in eyre lapped. the average u.s. gas price dropped 11 cents in the past two weeks to $2.14 a gallon the lowest since january. analysts think prices could continue to fall through december. and walmart is moving cyber monday to sunday night, it s