Variable-Rate Demand Bonds (VRDBs) Explained

Variable-Rate Demand Bonds (VRDBs) Explained

5 Min.

Variable-Rate Demand Bonds, also known as VRDBs, are a distinct class of municipal bonds with fluctuating coupon payments. Their interest rates are recalibrated periodically, and they offer bondholders the flexibility to demand repayment after an interest rate adjustment.


Variable-Rate Demand Bonds (VRDBs), an intriguing category within the realm of municipal bonds, deviate from the conventional fixed-rate counterparts. These bonds feature an ever-changing landscape of coupon payments, intricately tied to interest rate variations, setting them apart in the world of fixed-income securities.

The Municipal Bond Landscape

Municipal bonds, commonly referred to as "munis," are financial instruments issued by state and local governments to secure funds for public undertakings. These noble endeavors encompass critical infrastructure development, including hospitals, highways, and educational institutions. In return for their financial support, investors receive periodic interest payments, commonly known as coupon payments, throughout the bond's tenure. Upon maturity, the governmental issuer honors its commitment by repaying the bond's face value to the bondholders.

Unveiling the Variable Nature of VRDBs

However, not all municipal bonds are cut from the same cloth. While some munis feature fixed coupon rates, others dance to the ever-changing rhythm of interest rates. Those in the latter category are aptly named "Variable-Rate Demand Bonds" due to their penchant for variability. The interest rates on these bonds are not set in stone but are, in fact, subject to regular resets, which can occur on a daily, weekly, or monthly basis. This distinctive characteristic sets VRDBs apart from their fixed-rate counterparts and adds an element of intrigue to the fixed-income market.

Long-Term Commitments and Maturities

Variable-Rate Demand Bonds are often issued for long-term financing. Their maturities extend over a substantial timeframe, typically spanning from 20 to 30 years. This extended horizon allows state and local governments to embark on ambitious projects with the assurance of long-term financial backing from investors who believe in their cause.

The Lifeline of Liquidity

Intriguingly, Variable-Rate Demand Bonds demand a safety net in the event of a failed remarketing, a feature that adds a layer of security for investors. This safety net, often referred to as a "liquidity facility," is a crucial element in making these securities eligible for money market funds.

The Diverse Facets of Liquidity Facilities

There is diversity in the types of liquidity facilities that can be associated with VRDBs:

  1. Letter of Credit: This is essentially an unwavering promise from a bank to pay investors the principal and interest owed on the VRDBs in case of unfortunate events like defaults, bankruptcy, or a downgrade of the issuer. As long as the financial institution providing the letter of credit remains financially sound, investors can rest assured that they will receive their due payments.
  2. Standby Bond Purchase Agreement (BPA): In this scenario, the issuer of the VRDBs secures a standby agreement with a financial institution, which pledges to purchase the bonds if there is a failed remarketing. This agreement acts as a safety net, assuring bondholders that they will not be left in a lurch.
  3. Self-Liquidity: Some issuers rely on their own financial strength to provide the necessary liquidity for the VRDBs, eliminating the need for external parties. This self-reliant approach allows the issuer to maintain control over the bonds' liquidity without involving third parties.

The Power of Early Redemption

Variable-Rate Demand Bonds often come equipped with an embedded feature that affords bondholders a unique power - the option to redeem the bonds before their maturity. This embedded feature is commonly known as a "put option."

Exercising the Put Option

When a bondholder decides to exercise the put option, it signifies their intent to tender the bonds back to the issuing entity. The exercise usually occurs on the interest reset date, aligning it with the regular recalibration of interest rates. The put price, in this context, equals the bond's face value plus any accrued interest. The bondholder must notify the tender agent within a specified timeframe before the bonds are tendered.

Factors Influencing the Put Option

The decision to exercise the put option can be influenced by various factors. Bondholders may opt for early redemption if they require immediate access to their invested funds. Additionally, an upswing in market interest rates can render the current coupon rate on the bond less attractive, prompting bondholders to exercise the put option and seek potentially more lucrative investment opportunities.

Managing Rate Fluctuations

In the realm of Variable-Rate Demand Bonds, rate fluctuations are a constant companion. The remarketing agent plays a pivotal role in managing these fluctuations. When bonds are tendered prematurely due to rising interest rates, the remarketing agent takes charge by setting a new, higher interest rate for the bonds. Conversely, if market rates fall below the bond's coupon rate, the agent intervenes again, resetting the rate to the lowest possible level that would avert the need for a put option exercise.


Variable-Rate Demand Bonds, with their ever-evolving coupon payments and unique features, offer a dynamic investment opportunity within the world of municipal bonds. They allow investors the flexibility to align their investments with their financial needs and market conditions, making them a compelling choice for those seeking to navigate the complex landscape of fixed-income securities. Understanding the distinct nature of VRDBs, their liquidity facilities, and the power of early redemption empowers investors to make informed decisions in pursuit of their financial goals.

Variable-Rate Demand Bonds (VRDBs)
Municipal Bond
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