show plans for the sign to Condé Nast, the building's flagship tenant, until January 1999. Condé Nast objected to the sign, citing a clause in its 500-page lease. According to Condé Nast, the sign would block the windows of its art department and that it protruded too far from the facade. In response, Nasdaq said the sign was within the terms of its own lease and that, in any case, Condé Nast's graphic-arts department did not need natural light. The dispute was decided in an arbitration proceeding, where an arbitrator ruled in favor of Nasdaq. The display ultimately cost $37 million and started illuminating on December 28, 1999. Nasdaq announced a partnership with Reuters in 2006, in which companies could display advertisements across both MarketSite and the Reuters Building at 3 Times Square across the street. Advertisers could choose between splitting their advertisement across the two buildings, running the same ad across both buildings, or displaying different messages on either building. In 2018, Nasdaq signed a lease at 4 Times Square, extending the MarketSite lease while also moving the company's global headquarters to 4 Times Square. Nasdaq expanded to at 4 Times Square in May 2019. References Citations Sources External links MarketSite page on the Nasdaq website Times Square MarketSite 2000 establishments in New York City