Geopolitical Risk Impact on Defense Stock Valuations

Most investors assume that any conflict or tension automatically translates to higher valuations for defense contractors. They’re not entirely wrong, but the reality is more nuanced than that binary framing suggests. Understanding those nuances is what separates intelligent capital allocation from speculation dressed up as strategy.

Defense stocks do tend to outperform during periods of elevated geopolitical risk, but the magnitude, duration, and sustainability of those gains depend on factors that most market commentary ignores entirely. This analysis breaks down the actual mechanisms at work, examines historical evidence with specific numbers, and identifies where conventional wisdom about defense investments falls apart when you look at the data.

Historical Performance: What the Data Actually Shows

The defense sector’s response to geopolitical crises follows observable patterns, but those patterns are not uniform across all conflicts or time periods.

During the Cold War, defense contractors experienced their first major sustained bull market as defense spending climbed from approximately 5% of US GDP in the early 1950s to a peak near 10% during the Kennedy administration. Lockheed Martin, then known as Lockheed Aircraft, saw its stock appreciate dramatically throughout this period as the company secured contracts for the U-2 spy plane, F-104 Starfighter, and eventually the Apollo program’s lunar modules. However, the end of Cold War tensions in the late 1980s and early 1990s led to the “peace dividend” — defense spending dropped by approximately 40% in real terms between 1989 and 1995, and companies like General Dynamics lost over 60% of their revenue during this contraction. This historical episode matters because it demonstrates that defense stocks price in the expectation of continued tension, not the conflict itself.

The Gulf War in 1990-1991 offers a shorter-term case study. Following Iraq’s invasion of Kuwait in August 1990, the Philadelphia Defense Index rose approximately 25% between July 1990 and January 1991. The conflict’s swift conclusion — Operation Desert Storm lasted only 100 hours of ground combat — meant that gains were largely erased by March 1991. Investors who bought on the initial spike and held through the conflict’s resolution would have seen significant losses. This pattern repeats: brief conflicts with clear resolutions create short-lived rallies.

The September 11, 2001 attacks fundamentally altered the defense sector’s trajectory in ways that persist two decades later. The defense budget doubled in nominal terms between 2001 and 2011, from approximately $300 billion to over $600 billion annually. Lockheed Martin’s stock price increased roughly sixfold between 2001 and 2015. Raytheon’s stock appreciated similarly. But the key insight here is that the gains were not concentrated in the immediate aftermath of 9/11. Instead, they accumulated over years of sustained spending increases,招标 delays, and program expansions. The defense sector’s performance during this period was less about acute geopolitical events and more about a permanent structural increase in defense spending.

The most recent test case is the Russia-Ukraine conflict beginning in February 2022. Within weeks of Russia’s invasion, the Philadelphia Aerospace & Defense Index jumped approximately 15%. Lockheed Martin, RTX (formerly Raytheon), and Northrop Grumman all posted double-digit percentage gains. However, by late 2022, many of these gains had reversed as investors processed the reality that while the conflict was durable, the direct implications for US defense procurement were less clear-cut than many had assumed. The Ukraine war drove increased demand for certain munitions — Javelin anti-tank missiles, Stinger anti-aircraft systems, artillery shells — but the US industrial base’s capacity constraints became immediately apparent. This is a crucial point that most analysis overlooks: increased demand does not automatically translate to increased revenue or margins when supply chains cannot respond.

The Mechanisms: How Geopolitical Risk Actually Drives Valuations

Understanding why defense stocks respond to geopolitical events requires distinguishing between several distinct mechanisms, each of which affects valuations differently.

Defense spending increases represent the most direct mechanism. When governments perceive elevated threats, they allocate more money to military capabilities. The 2022 National Defense Strategy explicitly cited China as the “pacing challenge” and called for sustained investment in long-range strike capabilities, distributed logistics, and nuclear modernization. This policy direction, rather than any single conflict, is what drove defense stock valuations higher in 2022 and 2023. The budgets passed in December 2022 and December 2023 both exceeded initial Pentagon requests, reflecting congressional willingness to increase defense spending even in a constrained fiscal environment.

Procurement cycle shifts matter as much as absolute spending levels. Defense programs operate on timelines measured in decades, not quarters. The F-35 program, for instance, has been in development and production for over twenty years. When geopolitical tensions rise, investors anticipate accelerated procurement timelines, which increases the present value of future cash flows. This is why companies with large backlogs — Lockheed Martin currently carries approximately $160 billion in backlog — tend to see their valuations increase more than companies dependent on new contract wins.

Investor sentiment and risk appetite create the third mechanism. Defense stocks are traditionally considered defensive plays — they outperform during periods of uncertainty because investors assume governments will spend on security regardless of economic conditions. During the market volatility of 2022, when the S&P 500 declined approximately 19%, defense stocks as a sector declined only about 3%. This relative outperformance reflects the perception that defense spending is less vulnerable to economic downturns than other government discretionary programs.

The critical insight that most articles on this topic miss is that these three mechanisms can work in opposite directions. Strong investor sentiment might push valuations higher even as procurement timelines remain unchanged or even lengthen. Spending increases might be priced in well before the actual appropriation occurs, creating negative returns when the increase proves smaller than expected. Understanding which mechanism is driving a particular rally is essential for assessing whether the valuation is justified.

Quantifying the Impact: Performance Data and Historical Correlations

The data on defense stock performance during geopolitical events is more mixed than most bullish commentary suggests.

A 2019 study from the Center for Strategic and International Studies examined defense stock performance during various crises between 1980 and 2018. The study found an average sector rally of approximately 8-12% during the initial escalation phase of conflicts, but the duration of outperformance varied dramatically. After six months, defense stocks had outperformed the broader market in roughly 60% of cases — not the 90%+ success rate that defense stock bulls typically claim.

Specific percentage movements tell a more complicated story. During the 1990-1991 Gulf War buildup, the defense sector outperformed the S&P 500 by approximately 12 percentage points. But during the 2003 Iraq War invasion, the sector actually underperformed by about 4 percentage points in the three months following the intervention. The difference: by 2003, defense stocks had already rallied significantly on post-9/11 spending expectations, so the marginal impact of the Iraq conflict was negative.

The Ukraine conflict in 2022 produced sector-wide gains of approximately 15% in the first month, but these gains were concentrated in companies perceived to benefit most directly from the conflict — specifically, those producing missiles, artillery ammunition, and air defense systems. Companies like Lockheed Martin, whose product mix skews toward expensive platforms like fighter jets and naval systems, saw more modest initial gains. RTX, which owns the Javelin-producing Javelin Joint Venture, saw larger movements.

The challenge with all historical analysis is that each geopolitical event is unique. The defense stocks that benefit from great power competition between the US and China differ from those that benefit from regional conflicts in the Middle East or Eastern Europe. The current geopolitical environment — characterized by multiple simultaneous tensions rather than a single dominant threat — creates a more complex valuation environment than any single historical analog.

Factors That Moderate the Relationship

The connection between geopolitical risk and defense stock valuations is not deterministic. Several factors can moderate, or even reverse, the expected relationship.

Duration and outcome uncertainty dramatically affects valuations. The US wars in Afghanistan and Iraq lasted a combined 20 years, creating sustained defense spending that benefited contractors. But the eventual withdrawals — especially the chaotic August 2021 withdrawal from Afghanistan — created uncertainty about future spending trajectories. Defense stocks declined approximately 8% in the month following the Afghanistan withdrawal, reflecting investor concerns about the implications of what appeared to be US retrenchment from global engagement.

US direct involvement matters more than most analyses acknowledge. Defense stocks tend to perform better when US military involvement appears likely or certain. The current situation in Ukraine involves US support but no direct US combat involvement, which limits the positive impact on US defense contractor valuations. If NATO were to become directly involved in hostilities, defense stocks would likely rally significantly more than they have. The distinction between providing weapons and providing troops is economically meaningful.

Market conditions and interest rates create a confounding variable. Defense stocks are particularly sensitive to interest rate changes because many defense programs are long-duration assets. When interest rates rose sharply in 2022, the present value of future defense cash flows declined, partially offsetting the positive impact of geopolitical risk. This is a technical factor that retail investors often miss — macro conditions can overwhelm geopolitical tailwinds.

Budget politics and fiscal constraints present a structural headwind that has intensified recently. The 2023 debt ceiling fight created significant uncertainty about defense spending trajectories. The Bipartisan Budget Act of 2023 ultimately provided approximately $886 billion in defense funding, exceeding initial requests, but the political brinksmanship created volatility in defense stock valuations that had little to do with geopolitical developments. As US fiscal deficits continue to grow, the political feasibility of large defense spending increases becomes less certain — this is a point that bullish defense stock analysis consistently underweights.

Current Geopolitical Risk Assessment

The geopolitical environment as of early 2025 presents a complex picture for defense stock valuations.

The ongoing conflict in Ukraine continues to consume significant amounts of US munitions, exposing critical industrial base limitations. The US has provided over $75 billion in military assistance to Ukraine since February 2022, and replenishment of US stockpiles has become a significant driver of defense contractor revenue. This is not theoretical — Lockheed Martin has explicitly cited Ukrainian consumption of Javelin missiles and GMLRS rockets as a driver of increased production rates.

China’s military modernization and territorial assertiveness in the South China Sea and around Taiwan represent the most significant strategic challenge. The 2024 Taiwan elections and continued Chinese military exercises near the island have maintained elevated tensions. Defense contractors positioned for potential Pacific contingencies — including those producing long-range missiles, naval systems, and intelligence platforms — have seen their valuations benefit from this persistent risk premium.

The Middle East remains unstable, with the ongoing Israel-Hamas conflict and tensions between Iran and US allies creating additional demand signals. Iran-backed Houthis in Yemen have attacked shipping in the Red Sea, prompting US military responses and raising concerns about broader regional escalation.

What distinguishes the current environment from previous periods is the multiplicity of simultaneous risk factors. Unlike the Cold War (single dominant threat) or the post-9/11 period (one primary conflict), investors must now price in multiple potential escalation scenarios. This creates a more durable risk premium than any single threat would generate.

Counterintuitive Insights: What Most Articles Get Wrong

Two points that defense stock analysis consistently gets wrong deserve explicit attention.

First, defense stocks are not a pure hedge against market downturns. While they did outperform during the 2022 correction, this was not guaranteed. During the 2008-2009 financial crisis, defense stocks declined approximately 35%, roughly in line with the broader market. The 2022 outperformance reflected specific circumstances — elevated defense spending, supply chain concerns driving investor interest in industrial names — not a structural relationship. Assuming defense stocks will always provide downside protection is a mistake.

Second, the defense industrial base’s capacity constraints mean that increased demand does not automatically translate to increased revenue. This point is critical and frequently overlooked. The US currently lacks sufficient manufacturing capacity to simultaneously replenish stockpiles, support Ukraine, and maintain strategic reserves. This constraint limits how much defense contractors can actually benefit from elevated geopolitical risk. Their pricing power is constrained by both political pressures to keep costs down and genuine supply chain limitations. The gap between geopolitical risk levels and the defense sector’s ability to monetize that risk is wider than most analysis acknowledges.

Conclusion

The relationship between geopolitical risk and defense stock valuations follows observable patterns, but those patterns are more conditional than most investment commentary acknowledges. The sector does benefit from elevated geopolitical tension, but the size and durability of those benefits depend on factors that are difficult to predict: the duration and outcome of conflicts, the degree of US involvement, the fiscal environment for defense spending, and the industrial base’s capacity to respond to increased demand.

What remains genuinely unresolved is whether the current geopolitical environment will produce sustained outperformance or a series of volatile, short-lived rallies. The structural factors favoring defense stocks — great power competition, nuclear modernization requirements, industrial base replenishment needs — are durable. But the valuation premiums already embedded in current prices are substantial, and the room for positive surprises may be more limited than the enthusiastic commentary suggests. Investors should approach defense stock allocations with clear-eyed recognition of both the tailwinds and the constraints — the historical evidence does not support uncritical optimism about this sector’s prospects.