Most people think of the stock market as a digital platform where stocks are bought and sold instantly on an official exchange. This is only half the story. The other half is happens in the over-the-counter market. OTC is a large decentralized network where transactions take place directly between parties instead of a centralized exchange. This is not for the faint of heart or beginners. This is the complex, dealer-driven, negotiation-driven ecosystem necessary to move trillions of dollars in assets without ever touching the order books of the New York Stock Exchange or Nasdaq.
In the US, OTC is particularly important. Why? This is because stock exchange listings have strict and expensive requirements. Many securities simply do not meet the entry fee or do not want to pay the entry fee. Instead, they flow here.
The Mechanics of Dealer Trading
Exchange trading are usually automated and transparent. The OTC market works differently. It is driven by dealers. These companies buy and sell securities for their own account. They act as market makers, keeping inventory and setting prices.
The profit here does not come from fixed commissions. They come from the spread. A dealer buys bonds and stocks and sell them at a higher price. The difference between the purchase price and the sale price is the profit. There is no fixed schedules of fees. The price you pay depends on who you talk to, the volume you are moving, and the current demand for that issue.
You can also buy directly from a dealer who holds the stock. Alternatively, you can hire a broker to scours the network to find the best price. The latter is common among retail investors who need expertise to navigate the market with limited transparency.
Where the actual volume is located
Many investors believe that when a company goes public, its shares are traded on the stock exchange. This is usually wrong.
Take US government bonds as an example. Although government bonds are listed on the New York Stock Exchange, the primary trading venue is OTC. These large trades take place directly between institutional investors, banks and hedge funds. The same is true for most other bond issues and preferred stocks. Although they can be listed on the stock exchange to increase visibility, the actual liquidity takes place off-board.
What about state and local bonds? These are only traded over the counter. There is no central exchange for local government debt. If you want to trade bonds issued by a city or state, entering the over-the-counter market.
This distinction is important. This means that the price is determined through bilateral negotiations instead of public order book.
Third market: institutional block trading
There is a special subgroup for this activity called the third market. This includes stocks that are listed on a stock exchange but are traded over the counter.
Why are you doing this? Institutional investors, such as mutual funds and pension funds, move large blocks of stock. Making large trades on public exchanges can cause an unfavorable change in prices. You may also be charged fixed commissions which can eat into returns. These institutions can negotiate large discounts through OTC trades. They avoid strict exchange rules. They get better execution for their size.
This is not a retail trading. This is the plumbing of the financial system that moving huge amounts of capital away from the public eye.
Regulation and Oversight
OTC is not the wild west. It is strictly regulated. For decades, the National Association of Securities Dealers (NASD) has set the rules. This organization was created in 1939 by an act of Congress to establish codes.
