What is the difference between proprietary trading and market making under the Volcker Rule?

Explore the distinctions between proprietary trading and market making activities as defined by the Volcker Rule, and their regulatory implications.


The Volcker Rule makes a clear distinction between proprietary trading and market making activities to regulate and restrict certain trading practices by banking entities. Here are the key differences between the two:

  1. Purpose of the Activity:

    • Proprietary Trading: Proprietary trading involves trading financial instruments (such as stocks, bonds, derivatives, and commodities) for the bank's own profit or gain. In proprietary trading, the bank takes positions in these instruments with the intention of making a profit from market movements, rather than executing trades on behalf of clients.

    • Market Making: Market making, on the other hand, involves facilitating the buying and selling of financial instruments on behalf of clients, providing liquidity to the market, and profiting from the bid-ask spread (the difference between the buying and selling prices). Market makers act as intermediaries between buyers and sellers and aim to maintain a fair and orderly market.

  2. Intent:

    • Proprietary Trading: In proprietary trading, the intent is to generate profits for the bank's own account. Banks engage in proprietary trading with the primary goal of making money from price movements in the financial markets.

    • Market Making: Market makers do not engage in trading for the primary purpose of making a profit from price movements. Instead, they facilitate the efficient functioning of the market by standing ready to buy and sell securities, helping to ensure that buyers and sellers can transact when they want to.

  3. Principal vs. Agent Role:

    • Proprietary Trading: In proprietary trading, the bank acts as a principal, taking direct positions in financial instruments. It is the counterparty to the trade and bears the associated risks.

    • Market Making: Market makers typically act as agents on behalf of their clients, executing trades to meet client orders. They do not take ownership of the financial instruments but instead facilitate the trade between the buyer and the seller.

  4. Risk Position:

    • Proprietary Trading: In proprietary trading, the bank holds a significant position in the financial instrument and seeks to profit from price movements. The bank's capital is at risk in these trades.

    • Market Making: Market makers maintain relatively smaller positions in financial instruments to facilitate trading. Their primary risk is related to the bid-ask spread and ensuring that they can meet client orders efficiently.

Under the Volcker Rule, proprietary trading by banking entities is generally prohibited, with certain limited exceptions. Market making, however, is allowed and considered a legitimate activity when conducted to meet client needs and provide liquidity to the market. The rule aims to prevent banks from engaging in excessive risk-taking with their own capital while allowing them to continue essential market-making functions that contribute to the orderly functioning of financial markets. Compliance with the Volcker Rule is subject to regulatory oversight and reporting requirements to ensure that the distinctions between proprietary trading and market making are maintained.

Proprietary Trading vs. Market Making: Distinctions in the Volcker Rule.

The Volcker Rule generally prohibits banking entities from engaging in proprietary trading, but it does permit banking entities to engage in market making.

Proprietary trading is the buying and selling of securities for the banking entity's own account, rather than on behalf of its customers. Proprietary trading can be risky, as it exposes banking entities to losses if market prices move against them.

Market making is the process of providing liquidity to a financial market by buying and selling securities at quoted prices. Market makers play an important role in financial markets by helping to ensure that there are always buyers and sellers for securities, which makes it easier for investors to trade.

The Volcker Rule distinguishes between proprietary trading and market making in a number of ways.

  • Intent: Proprietary trading is done with the intent to profit from changes in market prices. Market making is done to provide liquidity to a financial market and to earn a spread between the bid and ask prices for securities.
  • Time horizon: Proprietary trading is typically done on a short-term basis. Market making is typically done on a long-term basis.
  • Risk exposure: Proprietary trading exposes banking entities to more risk than market making. This is because proprietary traders are taking directional bets on the market, while market makers are simply providing liquidity.

The Volcker Rule allows banking entities to engage in market making because it is considered to be a beneficial activity for the financial system. Market makers help to ensure that financial markets are liquid and efficient, which makes it easier for investors to trade and helps to reduce the cost of capital for businesses.

Here is an example of the distinction between proprietary trading and market making:

  • A proprietary trader might buy a stock because they believe that the stock price is going to go up. The trader would then sell the stock at a profit when the stock price does go up.
  • A market maker would buy and sell the same stock at different prices throughout the day in order to provide liquidity to the market. The market maker would make a profit by earning a spread between the bid and ask prices for the stock.

The Volcker Rule's distinction between proprietary trading and market making is important because it helps to reduce the risk of banking entities engaging in risky speculative activities. By prohibiting proprietary trading, the Volcker Rule helps to protect the financial system from the risks that led to the 2008 financial crisis.