U.S. Mortgage Giants Accelerate Securities Purchases to Counter Rising Rates

Fannie Mae and Freddie Mac rapidly expand MBS holdings after Trump directive, aiming to support housing market as geopolitical tensions push rates higher.

In a significant market intervention, the U.S. government-sponsored enterprises (GSEs) Fannie Mae and Freddie Mac are rapidly expanding their holdings of mortgage-backed securities (MBS). This accelerated activity is a direct response to climbing borrowing costs and aims to provide support to the domestic housing market.

A Strategic Reversal Gains Momentum

This move represents a sharp strategic pivot. In the aftermath of the 2008 financial crisis, the retained portfolios of these two mortgage financiers contracted dramatically, falling from a peak of $1.5 trillion to just $158 billion by the end of 2022. A reversal began in the middle of last year, with combined holdings climbing steadily to reach $278 billion in January. The current pace of acquisitions is expected to push this total higher in the near term.

Geopolitical Tensions Fuel the Urgency

The directive for this action originated two months ago from President Donald Trump, who instructed the companies to purchase $200 billion in MBS. The policy goal is to apply downward pressure on mortgage rates, thereby improving housing affordability. Initial purchases were modest, as narrow risk premiums offered little room for profitable transactions.

The landscape has shifted fundamentally in recent weeks. Escalating conflict between the U.S. and Iran, coupled with volatile oil prices, triggered a surge in U.S. Treasury yields. Consequently, data from Freddie Mac shows the average rate for a 30-year fixed mortgage jumped to a three-month high of 6.22% by March 19. These widened spreads have created a far more attractive environment for Fannie Mae to bolster its portfolio while simultaneously countering interest rate pressure.

Market Response and Economic Forecast

The market reacted positively to news of the accelerated intervention. After shedding roughly 17% over the prior ten trading sessions, Fannie Mae's stock rallied last Friday, closing up 8.8% at $5.30. This substantial MBS buying spree constitutes a direct intervention into the companies' balance sheet structures, the effects of which will become clearer with the next release of national mortgage data.

Despite present market turbulence, economists at Fannie Mae anticipate a gradual easing of conditions. Their latest March forecast projects that 30-year mortgage rates will hold at around 6% through the first quarter before declining incrementally to 5.7% by the fourth quarter. This outlook is based on expectations for slower economic growth in the coming quarters.