portfolioissa

Portfolioissa is a Finnish inflected form of the loanword portfolio, used to indicate location in the plural (inessive case). It literally means "in the portfolios" and appears in contexts where multiple collections, dossiers or compilations are being referenced as containing items, documents or works.

The base word portfolio is a loanword in Finnish, adopted from other European languages to denote a collection of artistic, professional or financial assets. Finnish forms the plural inessive by combining the plural marker -t with the inessive case ending -ssa/-ssä; portfolio → portfoliot (plural) → portfolioissa (in the portfolios). Spelling and pronunciation follow Finnish phonotactics, so the form is adapted to regular suffixation patterns.

Usage is common in finance, creative industries and education: for example, discussing multiple investment portfolios, artists' showreels or students' compilations of coursework. Example sentence in Finnish: "Työt löytyvät portfolioissa" (The works are found in the portfolios). Related grammatical forms include portfoliosta (from the portfolios), portfolioihin (into the portfolios) and portfoliot (the portfolios).

As a grammatical item, portfolioissa illustrates how Finnish integrates foreign nouns into its case and number system, preserving meaning while conforming to native inflectional rules.