Will has decided to start investing, and he is fascinated by the variety of investment vehicles available in the market. He has minimal knowledge about stocks and bonds, and he was recently exposed to mutual funds and exchange$-$traded funds $($ETFS$)$ during an "Investing for Beginners" seminar at the community center. He learned that mutual funds and ETFs are not really different categories of investments; rather, they are different ways of holding investments, such as stocks and bonds. He feels that for small investors like himself, these funds might be a good way to invest because they can provide an affordable way for him to own many different stocks and bonds at the same time.