в счёт гонорара(for – за: I opened the envelope. It contained another sealed envelope and two checks made out to me. One, for $250, was marked "Retainer, as an advance against fees for professional services." (Raymond Chandler)ART Vancouver)
по курсу(Staff would send people with European currency to the customer service desk and we would operate as a bureau de change against a rate fixed two or three times a week.4uzhoj)
обеспеченное ипотекой требование(usually mortgage-backed bonds are secured by the cash flow from the underlying mortgage loan, not by the actual mortgaged property itself D Cassidy)
поставка против платежа(чаще "delivery versus payment (DVP) – порядок проведения расчётов по сделкам с ценными бумагами, обеспечивающий поставку ценных бумаг покупателю только при условии получении платежа продавцом (и одновременно с таким получением) kee46)