Uhhhh, no.<quoted text>
Finances are electronic and the location of financial companies can be moved in an instant.
The operating costs in NYC create too much overhead for most investors. New York operations are largely a token shell with most of the operating personnel located in places like South Dakota.
Neither of the two large companies where most Americans invest their financial resources are located in New York.
Just the NYSE is, in terms of capitalization, by far the largest financial exchange in the world.