Definition of "portfolio"

portfolio

/pɔɹtˈfoʊ.liˌoʊ/

noun
plural portfolios
1. A case for carrying papers, drawings, photographs, maps and other flat documents.
  Quotations
  He opened an embroidered portfolio; and, from its perfumed depths, took out a letter, which he began to read aloud.
  1837, L[etitia] E[lizabeth] L[andon], “Introduction”, in Ethel Churchill: Or, The Two Brides. […], volume III, London: Henry Colburn, […], page 142
2. (by extension) The collection of such documents, especially the works of an artist or photographer.
3. (politics) The post and the responsibilities of a cabinet minister or other head of a government department.
4. (finance) The group of investments and other assets held by an investor.
  Quotations
  Private-equity nabobs bristle at being dubbed mere financiers. […] Much of their pleading is public-relations bluster. Clever financial ploys are what have made billionaires of the industry’s veterans. “Operational improvement” in a portfolio company has often meant little more than promising colossal bonuses to sitting chief executives if they meet ambitious growth targets. That model is still prevalent today.
  2013 June 22, “Engineers of a different kind”, in The Economist, volume 407, number 8841, page 70
5. (business) A collection of assets; (figurative) any collection of things considered as investments or assets.
  Quotations
  In the past, thoughts were too real to be kept like a cultural portfolio of stocks and bonds. But now we have mental assets.
  1976 September, Saul Bellow, Humboldt’s Gift, New York, N.Y.: Avon Books, page 378
  Father: Darling, and no disrespect to you, Vicar, but what I'm thinking is this. How about a mixed portfolio, whereby we spread him through Judaism, Islam, Hindu, and so on, maintaining a firm base in the Church of England?Mother: It does sound safer.Father: Exactly.
  1989 February 10, Stephen Fry et al., “Christening”, in A Bit of Fry and Laurie, Season 1, Episode 5
6. A range of products.