What does PORTFOLIO mean?

noun

1. a large, flat, thin case for carrying loose papers or drawings or maps; usually leather“he remembered her because she was carrying a large portfolio”
2. a set of pieces of creative work collected to be shown to potential customers or employers“the artist had put together a portfolio of his work”
3. a list of the financial assets held by an individual or a bank or other financial institution“they were disappointed by the poor returns on their stock portfolio”
4. the role of the head of a government department“he holds the portfolio for foreign affairs”