Is the “bond haven” trade breaking—while Washington’s fiscal risks test the dollar?

U.S. market strategists and asset managers are openly debating whether the long-Treasury “slam-dunk” trade is still working as yields hover near the 5% area. MarketWatch highlights a key warning from former Treasury Secretary Steven Mnuchin that there is no “break-the-glass” backup plan if the U.S. struggles to finance its debt. In parallel, Bloomberg reports Rick Rieder of BlackRock projecting a potential move in the 10-year yield toward 4%, framing it through how the Federal Reserve could manage geopolitical risk and the yield curve under a different policy leadership style. Other Bloomberg interviews at the Milken Global Conference emphasize underwriting through uncertainty, with Barings CEO Mike Freno pushing a “holistic” M&A approach and TCW CEO Katie Koch arguing there is no reason to panic about private credit. The geopolitical angle is that U.S. fiscal trajectory and financing confidence are increasingly treated as strategic variables, not just domestic macro outcomes. Stephen Jen of Eurizon SLJ Capital warns that Washington’s spending spree could erode the dollar’s global “safe haven” status, implying that the U.S. may face a credibility premium even if markets remain liquid today. If investors start demanding higher term premia for Treasuries, it can tighten global financial conditions and shift capital toward alternative stores of value, affecting allies and competitors alike through exchange rates, funding costs, and risk appetite. The beneficiaries of this regime are likely to be managers positioned in duration, private credit, and opportunistic M&A, while the losers are the most levered balance sheets that depend on stable sovereign funding and benign credit spreads. Market implications are immediate across duration, credit, and liquidity. A move from ~5% toward ~4% on the 10-year yield would typically support long-duration equities and rate-sensitive sectors, while pressuring hedging demand and potentially compressing swap spreads; however, the “fiscal risk to the dollar” narrative can also raise inflation and term-premium expectations, creating two-way volatility. Private credit demand is being defended as resilient, which could keep capital flowing into direct lending and structured credit even if public markets wobble. The mention of £10bn cash bids at fat premiums signals that deal-making and takeover liquidity can persist despite volatility, but it also suggests investors are paying up for control and certainty rather than relying on cheap financing. What to watch next is whether the yield-curve narrative is driven by genuine disinflation and growth moderation or by a rising fiscal risk premium. Key triggers include sustained moves in the 10-year yield and the shape of the curve (front-end vs long-end), changes in Treasury auction metrics, and any widening in credit spreads that would validate the “uncertainty” underwriting theme. For the dollar, monitor DXY direction alongside real yields and inflation breakevens, because Stephen Jen’s warning hinges on safe-haven credibility rather than nominal rates alone. In the near term, the Milken conference messaging suggests asset managers will keep deploying capital, but escalation risk rises if funding stress appears in sovereign issuance or if liquidity conditions tighten enough to force repricing across both public and private credit markets.

Geopolitical Implications

• 01

  U.S. fiscal credibility is increasingly treated as a strategic asset: any erosion in the dollar’s safe-haven status can tighten global funding conditions and reshape capital flows.

• 02

  Federal Reserve operating style and yield-curve management are being framed as tools to absorb geopolitical risk, implying that monetary policy may become more explicitly linked to external shocks.

• 03

  If term premia rise, the U.S. could face higher financing costs that indirectly affect alliance support, defense procurement, and broader geopolitical leverage.

Key Signals

• —Sustained direction of the 10-year yield and the curve’s slope (front-end vs long-end).
• —Treasury auction demand indicators and any signs of deteriorating bid-to-cover or tail spreads.
• —Dollar safe-haven proxies: DXY trend, real yields, and inflation breakevens.
• —Credit spread behavior in private and public markets as a spillover test from sovereign risk.