The Overnight TIIE Funding Rate (F-TIIE) has rapidly become the cornerstone of the Mexican interest rate markets, replacing the 28-day TIIE as the benchmark rate for floating-rate instruments and derivatives. We have been at the forefront with our initial listing of the Mexican Funding TIIE (Monthly Contracts) futures contract (aka, One-Month F-TIIE futures). Now, we are adding quarterly contracts to provide additional risk management across a longer-term structure of the Mexican interest rate market.

Our monthly and quarterly Mexican F-TIIE futures offer distinct tools to a variety of market participants for hedging and pricing financial instruments, loans and derivatives. One-Month F-TIIE futures, which compound the Central Bank of Mexico’s Overnight TIIE Funding Rate over a single calendar month, are particularly useful for short-term risk management and granularity. Corporations issuing floating-rate debt or managing cash balances often use monthly contracts to hedge upcoming interest payments or to align exposure with month-end financial processes. The contract’s alignment with calendar months provides a clean match to accounting periods and cash flow schedules, and the monthly expirations allow for greater granularity at the front of the curve.

In contrast, Three-Month F-TIIE futures—compounding over the International Monetary Market (IMM) quarterly cycle—serve as a benchmark hedging tool for more complex, longer-term exposures. Swap dealers and structured product issuers commonly use these contracts to hedge interest rate swap (IRS) books, structured notes‌ and other derivatives that are priced off quarterly resets. Because they settle on IMM dates and reflect a longer period of rate exposure, Three-Month F-TIIE futures are central to pricing the forward curve.

Understanding the differences in use cases between these two futures contracts is essential when modeling compounded F-TIIE rates, especially when accounting for calendar effects such as weekends and holidays.

Feature

Monthly Contracts

Quarterly Contracts

Underlying Rate

F-TIIE

F-TIIE

Contract Unit

20,000 Mexican pesos x Contract-Grade IMM Index

50,000 Mexican pesos x Contract-Grade IMM Index

Reference Period

First to last day of calendar month

Typically the third Wednesday of the contract month to the business day before third Wednesday of the next quarter (IMM dates)

Accrual Convention

Actual/360 compounding across calendar days

Actual/360 compounding across business days

Final Settlement

Contract-grade IMM Index: 100 minus R

Contract-grade IMM Index: 100 minus R

Quoting

R = Compounded daily F-TIIE per annum rate during Contract Reference Period.

R = business day compounded daily F-TIIE per annum during Contract Reference Quarter

Listing Schedule

25 consecutive monthly contracts

21 quarterly contracts

Use cases

Risk management of month fixed income securities and loans i.e. bondes payments

Interest rate swaps and derivatives

The compounding formula to match IRS

Our F-TIIE futures settle at an annualized compounded F-TIIE rate using an actual/360 day-count convention. The standard formula used is:

This formula compounds each daily rate over the days it applies, accumulating interest as a geometric product. The final rate is annualized by raising the compounded value to the power, where it captures the total span of the compounding period.

How weekends and holidays are treated

The Central Bank of Mexico publishes F-TIIE only on Mexican business days. On weekends and holidays, no new rates are available. To ensure continuity in the compounding process, the most recent available rate is applied to all subsequent non-business days until the next rate is published. For example, the December 25, 2024 Christmas holiday occurred on Wednesday, in the middle of the week. While typical weekends have a three-day count period, a Monday weekend like Constitution Day on February 3, 2025 resulted in a four-day count period. The table below captures those scenarios, observed F-TIIE rates‌ and the daily interest accumulation factor (DIAF).

Mid-week holiday

 

Monday

Tuesday

Wednesday

Thursday

Friday

December

23

24

25

26

27

FTIIE rate (ri*)

10.11%

10.25%

no rate Christmas

10.18%

10.26%

Days in period

1

2

1

3

{1+(di/360)*(ri/100)}

1.00028083

1.00056944

1.00028278

1.00085500

 

Weekend

Thursday

Friday

Saturday

Sunday

Monday

January

9

10

11

12

13

FTIIE rate (ri*)

9.97%

9.96%

no rate Weekend

9.97%

Days in period

1

3

1

{1+(di/360)*(ri/100)}

1.00027694

1.00083000

1.00027694

Weekend

 

Thursday

Friday

Saturday

Sunday

Monday

January

9

10

11

12

13

FTIIE rate (ri*)

9.97%

9.96%

no rate Weekend

9.97%

Days in period

1

3

1

{1+(di/360)*(ri/100)}

1.00027694

1.00083000

1.00027694

Long Weekend

 

Friday

Saturday

Sunday

Monday

Tuesday

January-February

31

1

2

3

4

FTIIE rate (ri*)

10.03%

no rate Weekend

no rate Constitution Day

10.02%

Days in period

4

1

{1+(di/360)*(ri/100)}

1.00111444

1.00027833


Easy-to-build term structure

The introduction of our Three-Month F-TIIE futures, with a listing cycle of 21 quarterly contracts, offers significant benefits for interest rate swap (IRS) and derivatives users. One of the primary advantages is the extensive term structure coverage. With 21 quarters, the futures contracts provide five years of F-TIIE interest rate term structure. This extended coverage is particularly valuable as it aligns well with ‌typical interest rate swaps (IRS) activity in Mexico, where many swaps and derivatives are structured over multi-year periods. 

Where the monthly F-TIIE futures contract is directly comparable to the Bondes interest rate calculation; the compounding methodology of the Three-Month F-TIIE futures contract aligns with the standard IRS compounding practices. This alignment ensures that ‌Three-Month F-TIIE futures contracts accurately reflect the underlying interest rate dynamics, making them a reliable tool for hedging and pricing. Swap dealers and structured product issuers can use these contracts with confidence, knowing that they're directly comparable to the instruments they're hedging. This consistency is crucial for maintaining the integrity of hedging strategies and ensuring that risk management objectives are met.

Date alignment for foreign exchange opportunities

The alignment of the Three-Month F-TIIE futures with IMM dates is a crucial feature that enhances the utility and flexibility of these futures contracts. IMM dates are standardized settlement dates used in the global financial markets, and they are widely recognized and used for a variety of financial instruments, including our Mexican Peso futures. By aligning the Three-Month F-TIIE futures contract with these dates, we ensure that these contracts are seamlessly integrated into the broader financial ecosystem, making them more accessible and practical for a wide range of market participants.

One of the most significant benefits of this alignment is the ability to calculate a synthetic and executable domestic spot USDMXN (U.S. dollar to Mexican peso exchange rate). Market participants can achieve this by observing the price of the Mexican Peso futures and discounting it using the aligned Three-Month F-TIIE futures contract. This process provides a precise and reliable method for determining the spot exchange rate, which is essential for various financial activities, including hedging and trading.

For example, a trader looking to hedge their exposure to the Mexican peso can use Mexican Peso futures to manage their currency risk and the Three-Month F-TIIE futures contract to manage their interest rate risk. By combining these two instruments, the trader can create a synthetic position that closely mirrors the underlying cash instruments. This synthetic position can be used to execute trades and manage risk more effectively, providing a powerful tool for both hedging and speculative strategies.

The alignment of the Three-Month F-TIIE futures contract with IMM dates opens up additional opportunities for risk management and arbitrage. Market participants can identify and capitalize on discrepancies between futures prices and the underlying cash instruments. This alignment ensures that the futures market remains efficient and that market participants have the tools they need to manage their risks effectively.

Seize new opportunities with Three-Month F-TIIE futures

The introduction of our Three-Month Mexican Funding TIIE futures marks a significant advancement in the Mexican interest rate market. While One-Month F-TIIE futures are ideal for short-term risk management, the Three-Month F-TIIE futures contract provides a robust tool for managing longer-term and more complex exposures. 

Corporates, swap dealers‌ and structured product issuers can now leverage these contracts to better align their hedging strategies with their specific needs, whether it be for month-end financial processes or for pricing interest rate swaps and structured notes. 

Integrate both One-Month F-TIIE and Three-Month F-TIIE contracts into risk management strategies to better navigate the dynamic interest rate environment, ensuring greater financial stability and operational efficiency.

Contract Title 

Mexican Funding TIIE (Quarterly Contracts) Futures 

CME Globex and CME ClearPort Code 

TI3 

Rulebook Chapter 

CME 474 

Settlement Type 

Financially settled 

Contract Size 

50,000 Mexican Pesos x Contract-Grade IMM Index 

Pricing Quotation 

Index Points 

Minimum Price Fluctuation and Value Per Tick 

Contracts with Four Months or Fewer Until Termination of Trading: 0.0025 IMM Index points (¼ basis point per annum) equal to 125 MXN per contract 

All Other Delivery Months: 0.005 IMM Index points (½ basis point per annum) equal to 250 MXN per contract 

Termination of Trading 

Business day before the third Wednesday of the contract delivery month 

Listing Schedule 

21 consecutive quarters (March, June, September, December) 

Initial Listing 

March 2025 

Block Trade Minimum Threshold / Reporting Window 

10 contracts / subject to a 15-minute reporting window 

CME Globex Matching Algorithm 

A – Allocation 

Trading and Clearing Hours 

CME Globex PreOpen: 

Sunday: 4:00 p.m. – 5:00 p.m. Central Time (CT) 

Monday–Thursday: 4:45 p.m. – 5:00 p.m. CT 

CME Globex: 

Sunday – Friday 5:00 p.m. – 4:00 p.m. CT with a 60-minute break each day beginning at 4:00 p.m. CT 

CME ClearPort: 

Sunday 5:00 p.m. – Friday 5:45 p.m. CT with 


Appendix

Hypothetical non-listed Three-Month F-TIIE contract for the period of time during the IMM dates from December 18, 2024 until March 18, 2025. In this example, the date of F-TIIE publication is listed as obtained from the Bank of Mexico. The associated day count is calculated and applied to the daily interest accumulation factor (DIAF).  The product of the 91 days of DIAF are calculated and displayed on the first line of this table (Pi i Term). The actual / 360 daycount conversion then annualizes that figure. The final price is 100 less the rounded rate.

Pi i Term

1.02509535

Annualized (subtract 1, multiply by 360/91)

9.927831%

Rounded to Nearest 1/100 BP:

9.9278%

Contract price

90.0722

Publication Day

Overnight TIIE

Funding Rate

(Percentage)

Day Count

DIAF*

12/18/2024

10.26%

1

1.00028500

12/19/2024

10.30%

1

1.00028611

12/20/2024

10.06%

3

1.00083833

12/23/2024

10.11%

1

1.00028083

12/24/2024

10.25%

2

1.00056944

12/26/2024

10.18%

1

1.00028278

12/27/2024

10.26%

3

1.00085500

12/30/2024

10.14%

1

1.00028167

12/31/2024

10.20%

2

1.00056667

1/2/2025

10.05%

1

1.00027917

1/3/2025

10.00%

3

1.00083333

1/6/2025

10.00%

1

1.00027778

1/7/2025

9.99%

1

1.00027750

1/8/2025

9.98%

1

1.00027722

1/9/2025

9.97%

1

1.00027694

1/10/2025

9.96%

3

1.00083000

1/13/2025

9.97%

1

1.00027694

1/14/2025

9.99%

1

1.00027750

1/15/2025

9.99%

1

1.00027750

1/16/2025

9.99%

1

1.00027750

1/17/2025

9.99%

3

1.00083250

1/20/2025

10.00%

1

1.00027778

1/21/2025

10.01%

1

1.00027806

1/22/2025

10.00%

1

1.00027778

1/23/2025

10.02%

1

1.00027833

1/24/2025

10.01%

3

1.00083417

1/27/2025

10.00%

1

1.00027778

1/28/2025

10.02%

1

1.00027833

1/29/2025

10.00%

1

1.00027778

1/30/2025

10.00%

1

1.00027778

1/31/2025

10.03%

4

1.00111444

2/4/2025

10.02%

1

1.00027833

2/5/2025

10.05%

1

1.00027917

2/6/2025

10.00%

1

1.00027778

2/7/2025

9.49%

3

1.00079083

2/10/2025

9.50%

1

1.00026389

2/11/2025

9.50%

1

1.00026389

2/12/2025

9.50%

1

1.00026389

2/13/2025

9.49%

1

1.00026361

2/14/2025

9.49%

3

1.00079083

2/17/2025

9.50%

1

1.00026389

2/18/2025

9.49%

1

1.00026361

2/19/2025

9.49%

1

1.00026361

2/20/2025

9.48%

1

1.00026333

2/21/2025

9.51%

3

1.00079250

2/24/2025

9.48%

1

1.00026333

2/25/2025

9.48%

1

1.00026333

2/26/2025

9.48%

1

1.00026333

2/27/2025

9.48%

1

1.00026333

2/28/2025

9.52%

3

1.00079333

3/3/2025

9.49%

1

1.00026361

3/4/2025

9.50%

1

1.00026389

3/5/2025

9.50%

1

1.00026389

3/6/2025

9.45%

1

1.00026250

3/7/2025

9.45%

3

1.00078750

3/10/2025

9.47%

1

1.00026306

3/11/2025

9.48%

1

1.00026333

3/12/2025

9.50%

1

1.00026389

3/13/2025

9.50%

1

1.00026389

3/14/2025

9.50%

4

1.00105556

3/18/2025

9.49%

1

1.00026361

*DIAF = {1+(day count i/360)*(FTIIE rate i/100)}

Three-Month F-TIIE futures launched April 28, 2025


All examples in this report are hypothetical interpretations of situations and are used for explanation purposes only. The views in this report reflect solely those of the author and not necessarily those of CME Group or its affiliated institutions. This report and the information herein should not be considered investment advice or the results of actual market experience.

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