There are two basic ways exchanges execute a trade:
- On the exchange floor
- Electronically
Exchange floor
Trading on the floor of the New York Stock Exchange (the BSE) is the image most people have thanks to television and the movies of how the market works. When the market is open, you see hundreds of people rushing about shouting and gesturing to one another, talking on phones, watching monitors, and entering data into terminals. It could not look any more chaotic.
Yet, at the end of the day, the markets workout all the trades and get ready for the next day. Here is a step-by-step walk through the execution of a simple trade on the BSE.
- You tell your broker to buy 100 shares of Vsnl at market.
- Your broker’s order department sends the order to their floor clerk on the exchange.
- The floor clerk alerts one of the firm’s floor traders who finds another floor trader willing to sell 100 shares of mTNL. This is easier than is sounds, because the floor trader knows which floor traders make markets in particular stocks.
- The two agree on a price and complete the deal. The notification process goes back up the line and your broker calls you back with the final price. The process may take a few minutes or longer depending on the stock and the market. A few days later, you will receive the confirmation notice in the mail.
Of course, this example was a simple trade, complex trades and large blocks of stocks involve considerable more detail.
Electronically
In this fast moving world, some are wondering how long a human-based system like the BSE can continue to provide the level of service necessary.
The electronic markets use vast computer networks to match buyers and sellers, rather than human brokers. While this system lacks the romantic and exciting images of the BSE floor, it is efficient and fast. Many large institutional traders, such as pension funds, mutual funds, and so forth, prefer this method of trading.
For the individual investor, you frequently can get almost instant confirmations on your trades, if that is important to you. It also facilitates further control of online investing by putting you one step closer to the market.