The Floor of a stock exchange was once the main location for market activity to take place. While ‘Floor trading’ still exists to some extent today the vast majority of market activity now takes place electronically. Those trades that are still taking place on the Floor of an exchange are identified using the flag FLOOR in the Unusual Whales flow feed.

Floor traders and floor brokers both operate from the floor. Floor traders trade exclusively for their own accounts while floor brokers work on the behalf of their clients. 

Floor Resources:

Trade Codes (pages 17 18 19)