scalping
noun[U]
uk/ˈskælpɪŋ/usCOMMERCEUS
theactivityofbuyingthings, such astheatretickets, at theusualpriceand thensellingthem when they aredifficultto get athigherprices:
Sellingticketsabovefacevalue-commonlycalled scalping - isprohibitedbystatelaw.
FINANCE
theactivityofbuyingsmallquantitiesorshares,bonds, etc. and thensellingthemquicklyinorderto make asmallprofit