證券經紀商 
stock broker
俗稱「號子」,以接受客戶委託買賣有價證券為主要業務﹐不得自行買賣證券﹐手續費或佣金為其主要收入來源﹐因此不負買賣盈虧的風險。與自營商不同,經紀公司本身不具有資金或帳戶,純粹是接受投資人委託進行交易,並從中賺取交易的手續費或佣金。
Commonly known as the "chant" to the trading of securities accepted by customers as the main business, not be permitted to buy or sell securities, a fee or commission for their main source of income, so the risk live trading profit or loss. With different dealers, brokerage firm itself does not have the funds or accounts purely to accept investors commissioned by the transaction, and earn a commission or transaction fees.