AI Investment, Corporate Debt, and U.S. Treasury Dynamics Amidst Iran Conflict

The surge in capital expenditure driven by artificial intelligence (AI) is fueling a substantial increase in corporate debt, simultaneously pressuring the U.S. Treasury Department to enhance the attractiveness of its bonds. This complex interplay is further complicated by the ongoing conflict in Iran and its impact on the national deficit.

Record Corporate Bond Sales

Last Tuesday marked the busiest day on record for U.S. Corporate bond sales. A temporary calming of markets, spurred by President Donald Trump’s suggestion that the war with Iran may soon conclude, triggered a rapid increase in companies seeking to issue recent debt. Total investment-grade issuance exceeded $65 billion, surpassing the previous one-day record of $52 billion set in 2013. Amazon led this surge, raising $37 billion, exceeding its initial guidance of $25 billion to $30 billion, with investor demand reaching approximately $123 billion in orders.

Impact on the Treasury Market

This substantial corporate debt issuance has influenced the Treasury market, with daily trading volumes exceeding $1 trillion. Analysts at Deutsche Bank noted that the bond sales contributed to upward pressure on the 10-year yield, which rose 6 basis points to 4.16% during trading hours.

Growing Concerns About Federal Borrowing Costs

Apollo Chief Economist Torsten Slok previously cautioned that the increasing volume of corporate debt could lead to higher borrowing costs for the federal government. He estimated that investment-grade debt issuance could reach as high as $2.25 trillion in 2026. This trend is largely attributed to the AI boom, which is driving significant investments in data centers and related infrastructure by hyperscalers and associated companies.

Slok questioned who would be the primary buyer of this investment-grade paper, suggesting potential upward pressure on interest rates if the Treasury or mortgage purchases are required to absorb the supply.

Iran Conflict and Deficit Concerns

The situation has evolved since January. The ongoing war in Iran has caused oil prices to spike, contributing to rising bond yields and increased borrowing costs. The conflict is also exacerbating the national deficit, which reached $1 trillion in the first five months of the fiscal year. Initial estimates indicate the first six days of the war cost over $11.3 billion, according to Pentagon officials. President Trump has also proposed increasing defense spending to $1.5 trillion annually, from $1 trillion, potentially further expanding the deficit.

Treasury Demand Remains Strong

Despite concerns about the unsustainable trajectory of U.S. Debt, investor appetite for both corporate and government debt remains robust. A $22 billion auction of 30-year Treasury bonds drew solid demand, aided by the increase in yields since the war began. A Treasury offering last month also achieved the highest demand in the history of 30-year auctions, largely driven by overseas buyers.

“The bottom line is that Treasury auction metrics show that there continues to be exceptionally solid demand for the long end in US Treasuries,” Slok stated on February 20.

Recent Sanctions Against Iran

The U.S. Treasury Department has continued to impose sanctions on Iranian officials and entities. On January 30, 2026, the Treasury’s Office of Foreign Assets Control (OFAC) designated Eskandar Momeni Kalagari, Iran’s Minister of the Interior, and Babak Morteza Zanjani, an Iranian investor previously convicted of embezzlement. OFAC also designated two digital asset exchanges linked to Zanjani, marking the first time a digital asset exchange has been sanctioned for operating within the Iranian financial sector. These actions aim to target Iranian networks and individuals enriching themselves at the expense of the Iranian people. U.S. Department of the Treasury

the Trump administration imposed sanctions on some Iranian people and firms following a United Nations decision. AP News President Trump also abruptly requested Treasury Secretary Scott Bessent to attend an urgent meeting regarding Iran during a television interview. MSN