Principal trade finance
Educate yourself one term at a time, with our term of the day newsletter. Investing Term of the Day. Personal Finance Guide. Related Terms. Riskless principal is a party who, upon receipt of an order to buy or sell a security, buys or sells that security themselves as they fill the order. A principal order occurs when a securities firm acts as both a broker and a dealer in a transaction, buying or selling from the firm's inventory.