囤积居奇

1.store up goods to make a good bargain; buy up (sth.) in order to sell it at a profit later on; corner the market; engross the market; hoard and corner; hoard and hold out for higher prices; hoarding and cornering; hoarding and profiteering; hoarding and speculating; keep back goods to raise the price; make a corner in sth.; rig up; stockpile and corner goods; store up goods and raise their prices