Open Market Operations (OMO)

Open Market Operations (OMOs) are transactions in which central banks buy and sell securities in the market to implement their monetary policy. These operations typically occur between the central bank and commercial banks and help control the money supply, interest rates, and liquidity.

Objectives of Open Market Operations

1. Liquidity Management: Balancing excess or insufficient liquidity within the banking system.
2. Influencing Interest Rates: Maintaining short-term interest rates at targeted levels.
3. Controlling the Money Supply: Affecting inflation and economic growth.
4. Signaling Monetary Policy: Communicating the central bank’s policy stance to the market.

Types of Open Market Operations

Direct (Outright) Sales

When there is a permanent excess of liquidity in the market, central banks sell securities from their open market portfolios to banks or intermediary institutions to absorb the surplus liquidity. In return, these institutions permanently transfer their liquidity to the central bank. Thus, when central banks conduct direct sales, the total reserves of banks and intermediary institutions are reduced.

Reverse Repo (Sale with Repurchase Agreement) Operations

A reverse repo operation is typically conducted when there is a temporary excess of liquidity in the market, with the aim of withdrawing this surplus. In this operation, the central bank sells securities from its portfolio to authorized institutions at a price determined on the transaction date, with an agreement to repurchase them at a later date. The repurchase price is set at the value date of the transaction. The counterparty institution is obligated to sell the securities back to the central bank on the maturity date. As a result, the liquidity withdrawn from the market on the transaction date is returned to the market upon maturity.

Direct (Outright) Purchases

When liquidity is below the desired level on a permanent basis, central banks purchase securities from banks and intermediary institutions to meet the market’s liquidity needs, providing liquidity in return. Although direct purchases may involve acquiring securities from banks and intermediary institutions in the secondary market, most central banks—including the Central Bank of the Republic of Türkiye—do not conduct purchases from the primary market, as a reflection of their independence.

Repo (Repurchase Agreement) Operations

A repo operation is typically used when there is a temporary shortage of liquidity in the market, aiming to temporarily increase liquidity in the banking system. In this operation, the central bank purchases securities from authorized institutions at a price determined on the transaction date, with an agreement to resell them at a later date. The resale price is set on the value date of the purchase. The counterparty institution commits to repurchasing the securities from the central bank on the maturity date. As a result, the liquidity injected into the market on the transaction date is withdrawn upon maturity.

Deposit (Term Deposit) Absorption and Placement

Under deposit absorption and placement operations, which serve as a tool in monetary policy implementation, central banks conduct transactions at pre-announced interest rates to ensure that overnight money market interest rates remain within a specified band. In this context, when overnight interest rates in the money market reach the upper limit, central banks provide liquidity to banks against collateral under open market operations. Conversely, when interest rates fall too low, central banks absorb deposits from banks to prevent excessive fluctuations in interest rates.

Liquidity Bond Issuance and Early Redemption

To enhance the effectiveness of monetary policy, central banks issue liquidity bonds to absorb excess liquidity from the market. Liquidity bonds are tradable instruments in the secondary market, and central banks may repurchase them as needed.