New York Stock Exchange Building

New York Stock Exchange
U.S. National Register of Historic Places
U.S. National Historic Landmark
U.S. Historic district Contributing property
New York State Register of Historic Places
New York City Landmark No. 1529
Main facade of the building's southern section at 18 Broad Street
Location	18 Broad Street, Manhattan, New York
Coordinates	40°42′25″N 74°00′40″W / 40.70694°N 74.01111°W / 40.70694; -74.01111
Built	1903
Architect	Trowbridge & Livingston; George B. Post
Architectural style	Classical Revival architecture
Part of	Wall Street Historic District (ID07000063)
NRHP reference No.	78001877
NYSRHP No.	06101.000373
NYCL No.	1529
Significant dates
Added to NRHP	June 2, 1978[3]
Designated NHL	June 2, 1978[3]
Designated NYSRHP	June 23, 1980[1]
Designated NYCL	July 9, 1985[2]

The New York Stock Exchange Building (also the NYSE Building), in the Financial District of Lower Manhattan in New York City, is the headquarters of the New York Stock Exchange (NYSE). It is composed of two connected structures occupying part of the city block bounded by Wall Street, Broad Street, New Street, and Exchange Place. The central section of the block contains the original structure at 18 Broad Street, designed in the Classical Revival style by George B. Post. The northern section contains a 23-story office annex at 11 Wall Street, designed by Trowbridge & Livingston in a similar style.

The marble facade of 18 Broad Street contains colonnades facing east toward Broad Street and west toward New Street, both atop two-story podiums. The Broad Street colonnade, an icon of the NYSE, contains a pediment designed by John Quincy Adams Ward and Paul Wayland Bartlett, depicting commerce and industry. The facade of 11 Wall Street is simpler in design but contains architectural details similar to those at 18 Broad Street. Behind the colonnades at 18 Broad Street is the main trading floor, a 72-foot-tall (22 m) rectangular space. An additional trading floor, nicknamed the Garage, is at 11 Wall Street. There are offices and meeting rooms in the upper stories of 18 Broad Street and 11 Wall Street.

The NYSE had occupied the site on Broad Street since 1865 but had to expand its previous building several times. The structure at 18 Broad Street was erected between 1901 and 1903. Within two decades, the NYSE's new building had become overcrowded, and the annex at 11 Wall Street was added between 1920 and 1922. Three additional trading floors were added in the late 20th century to accommodate increasing demand, and there were several proposals to move the NYSE elsewhere during that time. With the growing popularity of electronic trading in the 2000s, the three newer trading floors were closed in 2007.

The building was designated a National Historic Landmark in 1978 and designated a city landmark by the New York City Landmarks Preservation Commission in 1985. The building is also a contributing property to the Wall Street Historic District, a National Register of Historic Places district created in 2007.