It's just a street where several major U.S. stock and other exchanges remain headquartered including the NYSE, NASDAQ, AMEX, NYMEX, and NYBOT.
The name of the street derives from the fact that during the 17th century, Wall Street formed the northern boundary of the New Amsterdam settlement. In the 1640s basic picket and plank fences denoted plots and residences in the colony. Later, on behalf of the Dutch West India Company, Peter Stuyvesant, in part using African slaves, led the Dutch in the construction of a stronger stockade. A strengthened 12-foot (4 m) wall of timber and earth was created by 1653 fortified by palisades. The wall was created, and strengthened over time, as a defense against attack from various Native American tribes, New England colonists, and the British. In 1685 surveyors laid out Wall Street along the lines of the original stockade. The wall was dismantled by the British in 1699. And while the original name referred to the Walloons,[citation