Geopolitical Events

Currencies exist within a political context. While inflation, interest rates, and GDP provide the economic framework for valuation, geopolitical events can override these fundamentals, sometimes violently and without warning. Wars, elections, trade disputes, sanctions, and territorial conflicts create uncertainty, and uncertainty reprices risk across all financial markets, with forex often bearing the most immediate impact.

This lesson examines how geopolitical events create currency volatility, explores real-world case studies, and provides a framework for assessing geopolitical risk as a forex trader.

Why Geopolitics Moves Currencies

Currency markets are forward-looking mechanisms that price in expected economic outcomes. Geopolitical events disrupt these expectations by introducing uncertainty about trade flows, capital movements, investment conditions, and economic policy. The transmission mechanism works through several channels:

• Capital flows, Investors move money out of countries perceived as risky and into safe havens. This creates immediate selling pressure on the affected currency and buying pressure on refuge currencies like the USD, JPY, and CHF.
• Trade disruption, Tariffs, sanctions, and blockades alter the flow of goods, changing trade balances and commodity prices, which directly affect export-dependent currencies.
• Policy uncertainty, Elections, regime changes, and political instability make future economic policy unpredictable, causing investors to demand a risk premium for holding that country's assets.
• Sentiment shifts, Geopolitical events trigger broad "risk-on" or "risk-off" sentiment across markets, moving currencies in patterns that have little to do with their individual fundamentals.

Case Study: U.S.-China Trade War and AUD/USD

The escalating trade conflict between the United States and China from 2018 through 2020 provides a detailed example of how geopolitical tensions transmit into specific currency pairs.

Australia's economy is deeply linked to Chinese demand for raw materials, iron ore, coal, and natural gas. When the U.S. imposed tariffs on $250 billion of Chinese goods in 2018 and China retaliated, the market immediately repriced the outlook for Chinese industrial activity. AUD/USD declined from approximately 0.8100 in January 2018 to 0.6700 by August 2019, a drop of over 1,400 pips.

The Australian dollar was not directly targeted by any tariffs. But because China is Australia's largest trading partner, any threat to Chinese economic growth is a threat to Australian export revenue. This is a critical lesson: geopolitical events often damage currencies indirectly, through their effects on trading partners and supply chains.

Case Study: Russia Sanctions and the Ruble

Following Russia's invasion of Ukraine in February 2022, Western nations imposed the most extensive sanctions ever placed on a major economy. The measures included freezing roughly half of Russia's foreign exchange reserves, removing major Russian banks from the SWIFT payment network, and imposing export controls on technology.

The initial impact on the ruble was catastrophic. USD/RUB surged from approximately 77 to above 150 within days, the ruble lost nearly half its value. The Central Bank of Russia responded with emergency measures: hiking its key rate from 9.5% to 20%, imposing capital controls, and requiring exporters to convert 80% of foreign currency revenues into rubles.

Case Study: Brexit and the British Pound

The United Kingdom's decision to leave the European Union, from the 2016 referendum through the final withdrawal agreement, represents perhaps the most prolonged geopolitical impact on a major currency in recent history.

On the night of the June 23, 2016 referendum, GBP/USD was trading above 1.50 as polls suggested Remain would win. When Leave results began coming in, the pound collapsed to 1.3224, a drop of over 1,700 pips and the largest single-day decline in sterling since the abandonment of the gold standard. But the impact extended far beyond one night. The years of negotiation uncertainty, the possibility of a "no-deal" exit, and the economic restructuring that followed kept the pound suppressed for years.

GBP/USD, which had traded between 1.40 and 1.70 in the years before the referendum, spent most of the 2017–2020 period between 1.20 and 1.35. The October 2016 "flash crash," when GBP/USD dropped to 1.1841 in a matter of seconds during thin Asian session liquidity, illustrated the ongoing fragility of sterling sentiment in the post-referendum environment. Even after the withdrawal agreement was finalized in 2020, the pound continued to trade at levels significantly below its pre-referendum range.

The Brexit experience demonstrates that geopolitical events are not always sudden shocks, they can create persistent regime changes in a currency's valuation. Traders who recognized early that the uncertainty would be measured in years, not weeks, were able to position accordingly rather than expecting a quick resolution.

Elections and Policy Uncertainty

National elections introduce uncertainty about future fiscal policy, trade agreements, regulatory environments, and international relationships. The market impact depends on how different the candidates' economic platforms are and how unexpected the outcome is.

Key patterns observed around elections:

• Implied volatility rises in the weeks before an election as traders price in the uncertainty of competing outcomes.
• Currency depreciation is common when the likely winner favors expansionary fiscal policy, trade protectionism, or institutional changes that could undermine central bank independence.
• Post-election rallies often occur once uncertainty resolves, regardless of who wins, because markets dislike ambiguity more than any specific policy direction.

The 2016 U.S. presidential election initially triggered a sharp selloff in U.S. equity futures and the Mexican peso on election night, but the dollar subsequently rallied as markets repriced expectations for fiscal stimulus and tax cuts under the incoming administration. MXN/USD, however, remained under pressure for weeks due to trade policy concerns.

Emerging market elections can produce even more extreme currency reactions. Turkey's elections and subsequent policy decisions in 2023, Brazil's election in 2022, and Argentina's recurring political crises have all triggered double-digit percentage moves in their respective currencies. For developed market currencies, the moves are smaller in percentage terms but still significant in absolute pips, the 2017 French presidential election saw EUR/USD gap higher by over 200 pips on the Monday following Emmanuel Macron's first-round victory, as markets priced out the risk of a eurozone-skeptic president.

The key lesson for traders: monitor election polls and betting markets, but recognize that polls can be wrong and that the initial market reaction may differ significantly from the longer-term trend once actual policies are implemented.

Central Bank Independence and Political Risk

One particularly important political risk factor is threats to central bank independence. When a government attempts to influence monetary policy decisions, pressuring a central bank to keep rates low to boost growth before an election, for example, currency markets react negatively. Turkey provides the most vivid recent example: President Erdogan's public pressure on the Central Bank of the Republic of Turkey to cut rates despite soaring inflation contributed to a USD/TRY move from approximately 8.50 in early 2021 to over 30.00 by late 2023. The erosion of institutional credibility directly translated into currency collapse.

War, Conflict, and Safe Haven Flows

Armed conflicts produce the most acute geopolitical risk events. The market's response follows a relatively consistent pattern:

1. Immediate risk-off, Capital flows into USD, JPY, CHF, and gold. Commodity currencies and emerging market currencies sell off.
2. Assessment phase, Markets evaluate the scope, duration, and economic impact of the conflict. If contained, the initial risk-off move partially reverses.
3. Sustained repricing, If the conflict disrupts energy supplies, trade routes, or global growth, the currency impact can persist for months or years.

The Middle East conflict that escalated in October 2023 provides a recent illustration. Oil prices initially spiked on fears of supply disruption, supporting commodity currencies like the Canadian dollar and Norwegian krone while simultaneously triggering safe-haven demand for USD, JPY, and CHF. As the conflict remained contained without directly disrupting major shipping lanes, the initial risk premium gradually faded. However, subsequent disruptions to Red Sea shipping routes in early 2024, a secondary geopolitical consequence, reignited supply concerns and renewed the impact on energy-linked currencies.

This pattern underscores that geopolitical events rarely resolve cleanly. They create cascading consequences and secondary effects that can produce follow-on currency moves weeks or months after the initial event.

The Role of Nuclear and Existential Threats

Extreme geopolitical scenarios, nuclear threats, potential state collapse, or existential territorial disputes, produce the most dramatic safe-haven flows. During the most acute phase of Russia-Ukraine tensions in early 2022, when nuclear escalation was publicly discussed, gold surged above $2,050 per ounce and the Swiss franc appreciated against virtually every currency. These extreme scenarios are rare, but they demonstrate the ceiling of geopolitical risk impact: when survival-level threats emerge, capital preservation dominates all other considerations, and traditional correlations can break down entirely.

The Geopolitical Risk Index

The Federal Reserve Bank of Dallas publishes a Geopolitical Risk Index (GPR) that quantifies the level of geopolitical threat by counting the frequency of words related to geopolitical tensions in major newspapers. While imperfect, the GPR provides a systematic measure that can be tracked over time and correlated with currency market volatility. Research from the BIS has shown that elevated GPR readings are associated with increased foreign exchange market volatility and wider bid-ask spreads, particularly for emerging market currencies.

Traders do not need to calculate the GPR themselves, but being aware that geopolitical risk has measurable market effects, and that researchers have quantified these effects, adds rigor to the analysis.

Assessing Geopolitical Risk Practically

As a forex trader, you do not need to become a foreign policy analyst. But you do need a framework for evaluating when geopolitical events are likely to matter for your positions:

• Proximity to major economies, Conflicts or tensions involving G7 nations or China have the broadest currency impact. A political crisis in a small, non-commodity-exporting economy may barely register in forex markets.
• Energy and commodity implications, Events that threaten oil supply routes (Strait of Hormuz, Suez Canal) or major commodity exports have outsized market effects because they change the cost structure of the global economy.
• Duration and escalation risk, One-time events produce spikes that often reverse. Escalating situations create trends. The question to ask is not "what just happened?" but "could this get worse?"
• Market positioning, If the market is heavily positioned in one direction, a geopolitical surprise can trigger cascading stop-loss orders and amplify the move far beyond what fundamentals alone would justify.
• Precedent and pattern recognition, Markets have experienced many geopolitical shocks. Studying how currencies responded to past events (Gulf War, September 11, Crimea annexation, pandemic lockdowns) provides a template for assessing probable responses to new events.
• Institutional credibility, Events that threaten the independence of central banks, the rule of law, or property rights in a country have particularly corrosive effects on currency value, as the Turkish lira collapse demonstrated.

Key Takeaways

• Geopolitical events move currencies through capital flows, trade disruption, policy uncertainty, and sentiment shifts. These effects can override economic fundamentals.
• Safe haven currencies (USD, JPY, CHF) tend to strengthen during geopolitical crises, while risk-sensitive currencies (AUD, NZD, emerging markets) weaken.
• Indirect effects can be as powerful as direct ones, the U.S.-China trade war damaged the Australian dollar despite Australia not being a party to the dispute.
• Capital controls can stabilize a currency in the short term but carry significant long-term economic costs, as demonstrated by Russia's 2022 response.
• Brexit showed that geopolitical events can create multi-year regime changes in currency valuation, not just short-term spikes.
• Elections introduce policy uncertainty that typically increases implied volatility and can trigger sharp moves once results become clear.
• The Geopolitical Risk Index (GPR) from the Dallas Fed provides a quantitative framework for measuring geopolitical tension over time.
• Risk management, not prediction, is the professional approach to geopolitical events. Reduce exposure, widen stops, and plan for multiple scenarios.

This lesson is for educational purposes only. It does not constitute financial advice. Trading forex involves significant risk of loss and is not suitable for all investors.