Nuclear spending surges: the US drives a record jump—are arms-control gains slipping away?

A new report cited by Reuters and echoed by Le Monde says nuclear-armed states spent about $119 billion on nuclear weapons in 2025, up nearly a fifth year-on-year. The International Campaign to Abolish Nuclear Weapons (ICAN) attributes the rise to accelerated modernization and sustained readiness costs across the nine nuclear-armed countries. Reuters reports that the United States alone spent more in 2025 than all other nuclear-armed states combined, marking a record level of US outlays. The articles frame this as a dangerous signal because the spending increase comes despite long-standing international commitments to restraint and arms control. Geopolitically, the shift in spending priorities suggests that major powers are hedging against uncertainty rather than relying on existing deterrence frameworks. If the US is widening the gap in nuclear expenditure, it can translate into stronger leverage in deterrence credibility, bargaining positions, and future arms-control negotiations. At the same time, other nuclear powers—explicitly named in the Reuters piece as China, Russia, the UK, France, India, Israel, Pakistan, and North Korea—face incentives to avoid perceived inferiority, which can reinforce a security dilemma. ICAN’s framing implies that arms-control momentum may be weakening, potentially reducing transparency and increasing the risk of miscalculation. For markets, the most direct impact is on defense and strategic supply chains tied to nuclear modernization, including aerospace, precision engineering, specialty materials, and government contracting. While the articles do not quantify sector-by-sector effects, a broad 19% global increase to roughly $119 billion is consistent with sustained demand for long-cycle programs, which can support defense-related equities and industrial procurement budgets. Indirectly, higher nuclear risk premiums can influence sovereign risk assessments for countries most exposed to strategic competition, and can affect hedging behavior in rates and FX through changes in geopolitical volatility. Commodities are less directly implicated in these specific articles, but defense spending narratives can still lift demand expectations for industrial inputs used in military systems. The key watchpoints are whether the spending surge is accompanied by new deployment timelines, changes to warhead or delivery-system modernization schedules, and any renewed diplomatic efforts to cap or verify arsenals. Investors and policymakers should monitor statements tied to arms-control frameworks, including verification mechanisms and any signals of willingness to negotiate limits. A practical trigger for escalation would be evidence that modernization accelerates alongside reduced transparency, such as fewer confidence-building measures or tighter information controls. Conversely, de-escalation signals would include concrete proposals for risk-reduction steps, renewed dialogue on strategic stability, and measurable commitments to restraint that can be independently assessed.

Geopolitical Implications

• 01

  US-led spending gap may shift leverage in strategic stability talks.

• 02

  Broad modernization budgets across nuclear powers weaken restraint and transparency.

• 03

  Higher miscalculation risk grows when verification and confidence-building erode.

Key Signals

• —Updates on warhead and delivery-system modernization timelines.
• —Arms-control verification and confidence-building measures signals.
• —Public posture changes that indicate rising crisis instability.
• —Defense procurement contract awards confirming long-cycle nuclear demand.