A global brokerage and financial services firm, INTL FCStone, is consolidating to 230 Park Ave.

The Fortune 500 company will have 73,000 square feet on the entire 10th floor in the 34-story office tower next to Grand Central Terminal.

The space was vacant and demolished and is undergoing a build-out prior to the company’s relocating from the nearby 155 E. 44th St. and 530 Fifth Ave.

Matthew Felice, David Miller and Gilbert Ohls of JLL represented INTL FCStone in its search for a new headquarters.

Jordan Berger represented the RXR ownership in-house along with a Newmark Knight Frank brokerage team of Brian Waterman, Scott Klau, Erik Harris, Zachary Weil and Cole Gendels. The asking rent is in the mid-to-upper $70s per square foot.

Rare floors at the top of the building with great views are becoming available at much higher rents, says William Elder, managing director of RXR.

The 1.4-million-square-foot office tower sits between East 45th and 46th streets and straddles Park Avenue. It recently underwent a $100 million capital improvement program.

Publicly traded on NASDAQ, INTL FCS Stone says it connects clients with global markets across asset classes and provides execution, post-trade settlement, clearing and custody.

It has 1,600 employees with more than 20,000 customer accounts across 130 countries and five continents.