Yield - The return on an investment
expressed as a percentage. Alternatively, the profit
or income that an investment or property will return;
the money derived from any given business venture,
usually expressed as an annual percentage of the initial
investment. Straight yield (or running yield) relates
cash flow to price paid and does not take into account
any gain or loss of principal. Amortised yield (or
redemption yield) relates the sum of both cash flow
(interest payments) over the life of the security
and any gain or loss at maturity to the initial amount
invested. (See also Yield to Maturity).