scalping

/ˈskælpɪŋ/ noun [U]

Definition

› US COMMERCE the activity of buying things, such as theatre tickets, at the usual price and then selling them when they are difficult to get at higher prices: Selling tickets above face value - commonly called scalping - is prohibited by state law.

› FINANCE the activity of buying small quantities or shares, bonds, etc. and then selling them quickly in order to make a small profit

(Definition of scalping noun from the Cambridge Business English Dictionary © Cambridge University Press)