A packed global election calendar in 2026 is emerging as a fresh source of volatility for financial markets already unsettled by abrupt shifts in US policy and rising geopolitical tension. From Japan and Hungary to Brazil and the United States, voters will head to the polls in contests that could reshape fiscal priorities, alter alliances and test investor confidence at a time when debt burdens are high and growth remains uneven.
In Japan, a snap election scheduled for February 8 is among the most unpredictable in years and has focused attention on the world’s most indebted developed economy. Prime Minister Sanae Takaichi is seeking to turn her personal popularity into stronger parliamentary backing for expansionary fiscal policies that would loosen the purse strings after decades of caution. While she remains a dominant figure, recent opinion polls suggest her approval ratings have slipped slightly, adding uncertainty to the outcome.
Markets are already bracing for pressure on Japanese government bonds. Some analysts believe 10-year yields could climb to 3% this year, up from just over 2% now, a significant move in a country long accustomed to ultra-low rates. Traditionally, the yen has tracked the gap between US and Japanese interest rates, but that relationship weakened last year as concerns about fiscal stimulus and debt sustainability came into sharper focus. Investors are watching closely for any signal that the election could accelerate those pressures.
Across Latin America, elections are expected to test whether the region’s recent drift to the political right continues. Colombia stands out, with voters potentially going to the polls as many as three times beginning in March to choose new legislators and a president to replace Gustavo Petro. The leftist leader has clashed openly with US President Donald Trump, unsettling some investors despite Colombian stocks outperforming regional peers last year.
Bond investors, in particular, are hoping that Colombia joins the broader regional shift toward more orthodox economic policies. Nicolas Jaquier, a portfolio manager at Ninety One, said that a move to the right could open the door to fiscal adjustment. However, he warned that a victory for Ivan Cepeda, a candidate aligned with Petro’s coalition, could allow structural changes at the central bank and supreme court, removing institutional checks that have slowed some of Petro’s agenda.
In Europe, Hungary’s April election is widely seen as the opposition’s best chance in more than a decade to unseat Prime Minister Viktor Orban after 16 years in power. The centre-right Tisza party currently leads Orban’s Fidesz in opinion polls, though the race remains tight. Cost-of-living pressures dominate voter concerns, and Orban has responded with fiscal giveaways that have strained public finances.
Those measures prompted Fitch Ratings to cut Hungary’s credit rating outlook to negative last year, citing sharply deteriorating budget projections linked to pre-election spending. Tisza has pledged to repair relations with the European Union and unlock frozen funds. Citi economist Luis E. Costa estimates that restored EU financing could mobilise around 10 billion euros, potentially supporting higher investment while reducing deficits and risk premiums, a prospect that has caught investors’ attention.
In the United Kingdom, even relatively low-profile local elections in May are being watched by markets. Prime Minister Keir Starmer’s Labour government has struggled to convince voters that it can revive growth, and opinion polls show it trailing the populist Reform UK. A recent sell-off in British bonds highlighted market sensitivity to any sign that Starmer’s fiscally restrained approach could be replaced by a less predictable alternative.
Economists caution, however, that even a change in leadership would not dramatically loosen Britain’s fiscal stance. Sam Cartwright, UK economist at Societe Generale, said a new prime minister would have limited scope to increase borrowing significantly. With the next general election not due until 2029, the immediate risk lies more in market nerves than in sweeping policy change.
Further south, investors are watching frontier markets where elections coincide with fragile recoveries from debt crises. Ethiopia and Zambia, both emerging from default, will hold elections this summer. In Ethiopia, Prime Minister Abiy Ahmed’s Prosperity Party is expected to win comfortably in June, with major opposition groups planning a boycott. Zambia’s President Hakainde Hichilema is also favoured to win in August, though analysts at Chatham House warn that everyday living conditions have yet to improve meaningfully despite progress on debt restructuring.
Markets see both countries as potential opportunities. Zambia’s economy has proved more resilient than many expected, while Ethiopia’s defaulted bond is trading above par, a sign that investors are betting on eventual resolution despite ongoing risks.
Brazil’s October presidential election could be one of the most consequential for emerging markets. President Luiz Inacio Lula da Silva, now 80, is leading polls against Flavio Bolsonaro, a right-wing senator and son of former president Jair Bolsonaro. Lula has managed to maintain an uneasy truce with Donald Trump despite clashes over tariffs, Venezuela and the elder Bolsonaro’s conviction for plotting a coup.
Some analysts warn that a Lula victory could weigh on markets. Tellimer analyst Geronimo Mansutti said another term could mean four more years of wide deficits and a steeper debt trajectory. Brazil’s Treasury now forecasts gross debt peaking at 88.6% of GDP in 2032, higher and later than previously projected. Yet others argue that Lula’s long record offers reassurance. Jaquier described him as a known quantity, pragmatic enough to appoint a credible economic team and make adjustments if required.
Hovering over all these contests is the United States, where November’s mid-term elections will determine control of Congress and serve as a referendum on Trump’s presidency. Affordability has emerged as a dominant issue, prompting the White House to float measures such as capping credit card interest rates. Polls show widespread dissatisfaction with Trump’s handling of the economy, and the president has acknowledged that Republicans could struggle to hold their narrow congressional majorities.
Historically, incumbent parties fare poorly in mid-terms, raising the stakes for Trump as he seeks to shape a narrative of economic strength. Guy Miller, chief markets strategist at Zurich Insurance, said the president is keen to see growth accelerate and markets rally in the run-up to the vote. The policies pursued in that context, he warned, will have global repercussions.
