Under the Act, a person is generally considered to be an investment adviser by the offering of advice or the making of recommendations on securities as opposed to other types of investments. Securities may be defined under the act as including but not necessarily limited to notes, bonds, stocks (both common and preferred), mutual funds, money market funds, and certificates of deposit. The term "securities" does not generally include commodity contracts, real estate, insurance contracts, or collectibles such as works of art or rare stamps and coins. Even those who receive finder's fees for referring potential clients to investment advisers are considered to be investment advisers themselves.