For reserve managers, the key question in fixed-income right now is how to think about portfolio structure at a time when geopolitical risk has re-entered the macro landscape. The Iran conflict has already pushed oil prices higher and introduced the possibility that inflation volatility could remain elevated for longer than markets expected earlier this year. That doesn’t necessarily mean inflation will reaccelerate in a sustained way, but it does complicate the interest-rate outlook. Higher energy prices are already prompting some economists and market participants to reassess the timing of rate cuts in several major economies, as central banks may prefer to pause easing cycles until the inflation implications of the conflict become clearer.
One observation that stands out today is that the front end of the US Treasury (UST) yield curve is once again paying meaningful income. As of mid-March 2026, T-bills out to one year are yielding roughly 3.6%–3.7%. For reserve managers seeking liquidity options, government money market funds deserve consideration. These funds typically invest in short-dated government securities, repos and T-bills while offering daily liquidity and operational simplicity. They may not be appropriate for every reserve framework and governance structure, but for some institutions they can serve as a way to access diversified exposure to the front end of the yield curve while maintaining high liquidity standards.
At the same time, yields further out the curve remain meaningfully higher. The UST 5-year yield is close to 3.9%, while the 10-year is above 4.2%. For central banks with clearly defined investment tranches, that creates an interesting question about whether the belly of the curve deserves renewed attention. Historically, many reserve portfolios have found the 3- to 7-year segment to be a relatively balanced part of the curve. It tends to offer higher carry than T-bills and shorter notes while avoiding some of the volatility associated with longer maturities during periods of inflation uncertainty. With energy markets now a key macro variable again, that middle segment of the curve may simply be an area worth revisiting when thinking about portfolio construction.
Another topic that occasionally comes up in discussions with reserve managers is the role of inflation-linked bonds. Over the past decade, low or even negative real yields limited the attractiveness of these instruments for many official portfolios. Real yields on 5- to 10-year Treasury Inflation-Protected Securities (TIPS) are currently positive, with 10-year real yields close to 1.9%. In practical terms, this means the choice is no longer between inflation protection and real income. For institutions that have considered inflation-linked assets in the past but never fully implemented them, the current environment may simply provide another opportunity to revisit the idea.
Currency diversification is another area where the global yield landscape looks different than it did just a few years ago. Short-term dollar-denominated yields remain higher than those available in euros, where the European Central Bank deposit facility rate currently stands near 2%, while sterling short-term rates are closer to 3.75%. None of this implies a shift in reserve currency allocations, but it does highlight that income dynamics across reserve currencies are no longer as compressed as they once were.
For institutions that invest beyond sovereign bonds, high-quality supranational issuers continue to provide modest spread over USTs while maintaining the credit quality and liquidity characteristics that many reserve frameworks require. The incremental yield isn’t significant, but for large official portfolios even small spread differences can accumulate meaningfully over time.
Another sector that occasionally enters the discussion is agency mortgage-backed securities (MBS). These securities have historically offered a modest yield advantage over USTs, reflecting compensation for prepayment and convexity risks. In the current rate environment, however, much of the outstanding mortgage universe carries coupons that sit well below prevailing mortgage rates. That dynamic reduces refinancing incentives and has contributed to relatively muted prepayment speeds. For investors, this can translate into more stable expected cash flows and less near-term reinvestment risk than during periods when mortgage rates fall sharply. At the same time, agency MBS continues to benefit from high credit quality through government sponsorship, along with the depth and liquidity that have long made the sector a core component of many fixed-income portfolios.
Some reserve managers have also been exploring short-duration investment-grade credit as a way to incrementally enhance portfolio income while maintaining relatively conservative risk characteristics. In practice, this typically means high-quality corporate bonds with maturities in the one- to three-year range, where spreads over government bonds remain positive but interest-rate sensitivity is limited. As with any credit exposure, governance frameworks, liquidity considerations and internal expertise matter a great deal, but in an environment where short-dated high-grade credit still offers a modest pickup over sovereigns, it’s naturally become part of the broader diversification discussion in some official portfolios.
Collectively, these observations don’t point to a single correct strategy given the variety of reserve frameworks. What they do suggest, however, is that the fixed-income opportunity set has become more interesting again, particularly as the Iran war and its collateral effects, most notably the surge in energy prices and renewed inflation uncertainty, are reshaping the global interest-rate outlook.