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Certificate of Deposit Index (CODI): Definition, How It Works, and Transition

Last updated 03/29/2024 by

Bamigbola Paul

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Fact checked by

Summary:
The certificate of deposit index (CODI) was a benchmark used to track three-month CD rates in the U.S., published by the Federal Reserve. It served as a reference point for various adjustable-rate loans, particularly adjustable-rate mortgages (ARMs). However, the CODI was discontinued in December 2013 when the Federal Reserve ceased publishing short-term CD rates. Understanding the CODI and its implications for adjustable-rate mortgages is essential for borrowers seeking flexible mortgage options.

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Certificate of deposit index (CODI)

The certificate of deposit index (CODI) was a significant benchmark utilized in the financial industry to gauge three-month CD rates in the United States. Provided by the Federal Reserve, this index played a crucial role in setting adjustable-rate loans, notably adjustable-rate mortgages (ARMs). Understanding the CODI and its relevance can help borrowers make informed decisions regarding mortgage options.

What was the certificate of deposit index (CODI)?

The certificate of deposit index (CODI), also referred to as the cost of deposit index, was derived from the 12-month average of the most recently published dealer bid rates (yields) on nationally traded three-month certificates of deposit. These rates were sourced from the H.15 Federal Reserve Statistical Release and annualized based on a 360-day year.
The CODI served as an official benchmark, reflecting fluctuations in short-term CD rates. It was typically calculated around the first Monday of each calendar month, making it a reliable indicator for lenders and borrowers alike.

Usage of CODI in adjustable-rate mortgages (ARMs)

Adjustable-rate mortgages (ARMs) are loans where the interest rate periodically adjusts based on an underlying financial index. The CODI was frequently utilized as a reference point for setting the interest rates on such mortgages. Unlike some other mortgage indexes, the CODI offered stability due to its 12-month moving average calculation.
When considering mortgage options, borrowers often weighed the pros and cons of different indexes. The choice between indexes, such as the CODI, LIBOR, or treasury rates, could significantly impact the overall cost of the mortgage over its term.

Comparing CODI with other mortgage indexes

The CODI, while offering stability, tended to lag behind other mortgage indexes in reacting to changes in interest rates. For instance, the one-month London Interbank Offered Rate (LIBOR) index might adjust more rapidly than the CODI in response to market fluctuations.
Borrowers also had the option to select from various indexes offered by lenders, including prime lending rates, treasury rates, or proprietary indexes. Understanding the nuances of each index and its historical performance was crucial in making an informed decision.

Considerations for borrowers

When evaluating adjustable-rate mortgage options, borrowers needed to consider both the index and the margin. While the index determined the variable portion of the interest rate, the margin remained fixed throughout the mortgage term.
Factors such as anticipated changes in interest rates, the index’s historical performance, and the lender’s margin should all be taken into account when choosing a mortgage. Conducting thorough research and consulting with financial experts could help borrowers navigate the complexities of mortgage selection.
Weigh the risks and benefits
Here is a list of the benefits and drawbacks to consider.
Pros
  • Provides stability: The certificate of deposit index (CODI) offered stability as a benchmark for adjustable-rate mortgages (ARMs), ensuring predictable mortgage payments for borrowers.
  • Relied upon by lenders: CODI served as an official benchmark published by the Federal Reserve, instilling confidence in lenders and borrowers alike regarding the accuracy and reliability of mortgage rates.
  • Historical performance: Understanding the historical performance of CODI allowed borrowers to assess its suitability for their mortgage needs, providing valuable insights into potential interest rate fluctuations.
Cons
  • Discontinuation: The Federal Reserve’s decision to discontinue short-term CD rates in December 2013 led to the cessation of the certificate of deposit index (CODI), depriving borrowers of a trusted benchmark for adjustable-rate mortgages.
  • Limited flexibility: While CODI offered stability, its 12-month moving average calculation resulted in slower adjustments to interest rate changes compared to other mortgage indexes, potentially limiting flexibility for borrowers.
  • Transition challenges: The discontinuation of CODI necessitated a transition to alternative mortgage indexes, posing challenges for borrowers in evaluating and adapting to new benchmarks for their mortgage rates.

Comparing CODI with other mortgage indexes

While the certificate of deposit index (CODI) provided stability due to its 12-month moving average calculation, it’s essential to compare it with other mortgage indexes to understand its advantages and limitations fully. Let’s explore how the CODI stacks up against some common mortgage indexes:

The prime lending rate

The prime lending rate, often referred to as the prime rate, is the interest rate that commercial banks charge their most creditworthy customers. Unlike the CODI, which reflects short-term CD rates, the prime rate is influenced by the Federal Reserve’s monetary policy decisions. Borrowers considering adjustable-rate mortgages must weigh the stability of the CODI against the potential fluctuations of the prime lending rate.

The one-year constant maturity treasury (CMT) value

The one-year constant maturity treasury (CMT) value represents the yield of U.S. Treasury securities with a maturity of one year. This index serves as a benchmark for various financial products, including adjustable-rate mortgages. Unlike the CODI, which focuses on CD rates, the CMT value reflects the broader bond market’s sentiment. Borrowers may opt for mortgages tied to the CMT value for a more diversified and stable index.

Understanding the impact of CODI discontinuation

The discontinuation of the certificate of deposit index (CODI) in December 2013 had significant ramifications for the mortgage industry and borrowers. Let’s delve into the repercussions of the CODI’s discontinuation and how it reshaped the landscape of adjustable-rate mortgages (ARMs).

Shift toward alternative mortgage indexes

Following the cessation of the CODI, lenders and borrowers had to pivot towards alternative mortgage indexes to set adjustable-rate mortgage (ARM) rates. This transition led to increased reliance on indexes such as the London Interbank Offered Rate (LIBOR), treasury rates, and proprietary indices. Understanding the characteristics and dynamics of these alternative indexes became paramount for borrowers seeking competitive mortgage terms.

Impact on borrower decision-making

The discontinuation of the CODI prompted borrowers to reassess their mortgage options and risk exposure. Without the CODI as a benchmark, borrowers had to evaluate the stability, volatility, and historical performance of alternative indexes to make informed decisions. This shift in borrower decision-making underscored the importance of financial literacy and understanding the intricacies of mortgage indexes in navigating the ever-evolving mortgage market.

Conclusion

The Certificate of Deposit Index (CODI) played a pivotal role in the financial landscape, providing stability and serving as a benchmark for adjustable-rate mortgages (ARMs). However, its discontinuation in December 2013 necessitated a shift towards alternative mortgage indexes, reshaping borrower decision-making and industry practices.

Frequently Asked Questions

What is the significance of the CODI in the mortgage industry?

The Certificate of Deposit Index (CODI) served as a crucial benchmark for adjustable-rate mortgages (ARMs), providing stability and transparency in setting mortgage rates. Its discontinuation prompted a shift towards alternative indexes, impacting borrower decision-making.

Why was the CODI discontinued?

The Federal Reserve discontinued the CODI in December 2013 following the cessation of short-term CD rate publications. This decision reflected changes in the financial landscape and the evolving nature of mortgage indexes.

How did the discontinuation of CODI affect borrowers?

The discontinuation of the CODI necessitated a transition to alternative mortgage indexes, posing challenges for borrowers in evaluating and adapting to new benchmarks for their mortgage rates. Borrowers had to reassess their mortgage options and risk exposure in light of this change.

What are the key considerations when selecting a mortgage index?

When selecting a mortgage index, borrowers should consider factors such as stability, volatility, historical performance, and alignment with their financial goals. Understanding the nuances of each index and its impact on loan terms is essential for making informed decisions.

How do borrowers navigate the complexities of mortgage selection?

Borrowers can navigate the complexities of mortgage selection by conducting thorough research, consulting with financial experts, and comparing different index options offered by lenders. By understanding the intricacies of mortgage indexes, borrowers can make informed decisions aligned with their financial objectives.

What resources are available for borrowers to stay informed about mortgage indexes?

Borrowers can stay informed about mortgage indexes through reputable financial websites, publications from regulatory agencies such as the Federal Reserve, and consultations with mortgage professionals. Keeping abreast of market trends and developments is crucial for navigating the ever-changing mortgage landscape.

Key takeaways

  • The Certificate of Deposit Index (CODI) was a benchmark used to track three-month CD rates in the U.S.
  • Published by the Federal Reserve, the CODI served as a reference point for adjustable-rate loans, including ARM mortgages.
  • The discontinuation of short-term CD rates by the Federal Reserve in December 2013 led to the cessation of the CODI.

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