This paper reports on a corpus-based description of predicative nouns in a register-diversified financial corpus. Structural linguistics (Chomsky 1981) and register analysis (Biber & Conrad 2009) are the theoretical backgrounds of this research. As predicative noun, we define a noun derived from a verb, an adjective or a noun that occurs in support verb constructions (Gross 1981). In order to identify the predicative nouns occurring in a Modern Greek financial corpus we applied (a.) five Lexicon-Grammar tables containing predicative nouns, along with their distributional and transformational properties (Tziafa 2012); (b.) 122 finite state automata (Ioannidou 2013), representing noun phrases.