The current economic landscape marked by significant expectations for heightened government debt issuance and the debt ceiling underscores the importance of short-term interest rate (STIR) risk management. 13-Week Treasury Bill futures (T-Bill futures), with their direct link to government funding and evolving market dynamics, offer a compelling instrument for managing this risk.

The evolving landscape of U.S. debt issuance

Figure 1: U.S. Treasury debt issuance (2017–2024) ($ Billions)

The COVID-19 pandemic provided a stark illustration of how rapidly Treasury issuance patterns can shift. The Department of the Treasury dramatically increased its issuance of Treasury bills (T-bills) during the pandemic. This surge in short-term debt was primarily to fund emergency fiscal responses and maintain a historically high operating cash balance in the Treasury General Account (TGA). While longer-dated notes and bonds also saw increased issuance, the Treasury leaned heavily on T-bills as a flexible "shock absorber" to meet immediate funding needs. 

The recent passage of 'The One, Big, Beautiful Bill' is poised to profoundly impact the U.S. debt outlook. This legislation, encompassing significant tax cuts and increased spending in areas such as defense and border security, is projected to add trillions to the national debt, according to the Congressional Budget Office (CBO). To finance projected deficits and increased spending, the Treasury would likely increase its issuance of various debt instruments in this new era of fiscal dominance. 

The TGA balance at the Federal Reserve is closely tied to debt issuance. If the proposed legislation results in higher spending, the Treasury might need to maintain a higher TGA balance as a buffer. To build or maintain this balance, the Treasury would likely issue more securities. Likewise, periods of high spending would draw down the TGA, which would then need to be replenished through further issuance.

Analysts anticipate that a substantial portion of this increased borrowing will be met through elevated issuance of short-term debt, particularly T-Bills.

Figure 2: Percentage breakdown of Treasury issuance

Year

Bills

Notes

Bonds

2017

75%

23%

2%

2018

74%

24%

2%

2019

76%

22%

2%

2020

81%

16%

2%

2021

74%

23%

4%

2022

77%

20%

3%

2023

85%

14%

2%

2024

84%

14%

2%

YTD 2025

83%

15%

2%

Source: SIFMA

Adding to this complexity is the recurring uncertainty surrounding the U.S. debt ceiling. While Congress has historically acted to raise or suspend the debt limit, periods leading up to the "X-date" (when the Treasury might exhaust its extraordinary funding measures) can induce significant volatility and a "flight to quality" phenomenon, where demand for safe assets like T-bills temporarily spikes, driving down their yields. The passage of 'The One, Big, Beautiful Bill' is expected to lead to a substantial increase in T-Bill supply as the Treasury replenishes its cash balance. This massive borrowing campaign to fund the government's operations will create sharp shifts in market dynamics that necessitate active management.

These potential behaviors in T-Bill supply create a direct and immediate need for effective hedging instruments.

Hedging with T-Bill futures

Given the potential for increased volatility and shifts in T-bill yields, our 13-Week U.S. Treasury Bill futures contracts provide an effective mechanism for hedging this exposure. These futures contracts are cash-settled to a price equivalent to 100 minus the highest accepted discount yield achieved at the 13-week T-bill auction, making them a direct hedge for the underlying T-bill market.

For institutions, portfolio managers and sophisticated traders, the ability to directly hedge short-term government debt exposure is vital. Whether managing cash and cash-equivalent positions, deploying cash or holding significant short-term Treasury positions, T-Bill futures provide a critical tool to mitigate the impact of unexpected shifts in short-term rates.

Figure 3: Percentage breakdown of U.S. Treasury holders

Fund managers can leverage these futures to hedge auction risk, effectively locking in yields for future T-bill purchases to mitigate adverse movements. Furthermore, these instruments enable yield-curve positioning, allowing managers to express views on the very short-end of the curve and execute spread trades in anticipation of debt ceiling resolutions or significant T-bill issuance.

Other use cases for fund managers include using T-Bill futures for relative value trading, exploiting discrepancies between T-bill yields and other money market rates like SOFR or EFFR. This allows them to capitalize on expected convergences or divergences by constructing strategic long/short positions.

Short-end hedging

Exposure provided by T-bills differs fundamentally from that of the Effective Federal Funds Rate (EFFR) or the Secured Overnight Financing Rate (SOFR).

T-bills are debt instruments with a fixed maturity and yield at issuance, whereas EFFR and SOFR are overnight benchmark rates reflecting the cost of borrowing or lending in the interbank and repurchase agreement (repo) markets, respectively. While T-bill yields generally move in tandem with these benchmark rates, they can diverge due to specific dynamics in the Treasury market. 

When the primary driver of short-term rates is monetary policy, the Federal Reserve's actions tend to influence all money market rates in a correlated fashion. However, this new fiscal reality introduces a powerful and idiosyncratic driver that may disrupt this correlation and create discrepancies.

These discrepancies, or basis spreads, between T-bill yields and other short-term rates offer opportunities for market participants to express views on relative value or to hedge specific funding costs. 

We offer Three-Month SOFR (SR3) futures/13-Week U.S. Treasury Bill (TBF3) futures inter-commodity spreads, which allow for precise hedging of broader interest rate movements and tailored portfolio strategies with 1:1 spread ratios and eligible margin offsets. This spread helps mitigate "asset swap risk" that arises when T-bill yields and SOFR rates react differently to market conditions, offering a refined risk management solution.

If a market participant anticipates T-Bill yields moving independently of broader money market rates due to increased T-bill supply, they can use T-Bill futures to isolate and hedge that specific risk by spreading them against SOFR or Fed Funds futures.

Figure 4: 13-Week T-bill, SOFR and EFFR

Conclusion

Legislative policy and its implications for future short-term debt issuance, alongside lessons learned from rapid T-Bill supply shifts during the COVID-19 era and the recurring dynamics of debt-ceiling negotiations highlight the ongoing need for robust hedging solutions.

Our 13-Week Treasury Bill futures provide a direct, liquid and capital-efficient instrument to navigate this complex environment. By offering precise exposure to upcoming T-Bill auction yields and enabling hedging against benchmarks like SOFR and EFFR, these futures empower market participants to manage their short-term interest rate exposures and seize opportunities in a dynamic market.


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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