President-elect Alberto Fernandez has barely time to savour his emphatic triumph in Argentina's elections before facing the challenge of trying to dampen likely volatile market reaction to his victory on Monday.

Alberto Fernandez (right) is expected to romp to victory in Argentina's general election after dominating opinion polls
Alberto Fernandez (right) is expected to romp to victory in Argentina's general election after dominating opinion polls AFP / Juan MABROMATA
President Mauricio Macri is urging Argentines to give him the chance to complete his attempts to fix the country's fragile economy
President Mauricio Macri is urging Argentines to give him the chance to complete his attempts to fix the country's fragile economy AFP / Ronaldo SCHEMIDT
Whoever wins Argentina's presidency will be faced with a divided nation
Whoever wins Argentina's presidency will be faced with a divided nation AFP / Ronaldo SCHEMIDT

Fernandez is scheduled to have an early breakfast meeting with President Mauricio Macri at the Casa Rosada palace to begin cooperating on damage limitation as Argentina swings from Macri's market-friendly policies back to Peronist protectionism.

Alberto Fernández y Mauricio Macri, principales candidatos en la elección presidencial del 27 de octubre en Argentina
Alberto Fernández y Mauricio Macri, principales candidatos en la elección presidencial del 27 de octubre en Argentina AFP / Nicolas RAMALLO
AFPTV / Magali CERVANTES

"How the markets react will depend a lot on how the two candidates react," said Raul Aragon, analyst at Argentina's La Matanza University.

Juntos Por el Cambio /
Supporters of Alberto Fernandez and his running mate Cristina Kirchner gather before the closing rally of their campaign in Buenos Aires on October 24
Supporters of Alberto Fernandez and his running mate Cristina Kirchner gather before the closing rally of their campaign in Buenos Aires on October 24 AFP / JUAN MABROMATA

"It is very important that they immediately give a sign of tranquility to the markets and society and this they will have to do together, they will have to take action together," he said.

Polls suggest Alberto Fernandez (R) and Cristina Kirchner, are set for a crushing victory in presidential elections
Polls suggest Alberto Fernandez (R) and Cristina Kirchner, are set for a crushing victory in presidential elections AFP / Juan MABROMATA
Argentine President Mauricio Macri Macri has blamed Argentina's economic problems on previous Peronist governments
Argentine President Mauricio Macri Macri has blamed Argentina's economic problems on previous Peronist governments AFP / RONALDO SCHEMIDT

"Tomorrow it will be pretty bad, there will be a lot of pressure on the peso and the banks," said Nicolas Saldias, Latin American expert at the Wilson Center.

Supporters of Argentine President Mauricio Macri have warned of surprises pointing out there were no polls published since a massive rally in central Buenos Aires last weekend
Supporters of Argentine President Mauricio Macri have warned of surprises pointing out there were no polls published since a massive rally in central Buenos Aires last weekend AFP / RONALDO SCHEMIDT
Calendar of elections in Latin America
Calendar of elections in Latin America AFP / Jonathan WALTER

While most of the market reaction has been priced in ahead of an anticipated Fernandez victory, "the markets will be negative," he said.

Argentina's presidential candidate Alberto Fernandez waves as he heads to a park with his dog early Sunday
Argentina's presidential candidate Alberto Fernandez waves as he heads to a park with his dog early Sunday AFP / Ronaldo SCHEMIDT
Argentine presidential candidate Alberto Fernandez plays with his dog in a park before going to vote in Sunday´s election
Argentine presidential candidate Alberto Fernandez plays with his dog in a park before going to vote in Sunday´s election AFP / Ronaldo SCHEMIDT

"Macri is president, but Alberto Fernandez has the power. There has to be some signal that they are working together. If there is no coordination the situation could quickly get even worse."

Argentina's presidential frontrunner Alberto Fernandez waves to supporters as he leaves a polling station in Buenos Aires
Argentina's presidential frontrunner Alberto Fernandez waves to supporters as he leaves a polling station in Buenos Aires AFP / ALEJANDRO PAGNI
Argentine President Mauricio Macri arrives at a polling station in Buenos Aires with his wife Juliana Awada
Argentine President Mauricio Macri arrives at a polling station in Buenos Aires with his wife Juliana Awada AFP / Juan MABROMATA

The return to power of protectionist Peronists comes amid a lengthy recession and a debt crunch, raising market fears of a possible default on a $57 billion IMF loan.

Electoral authority staff hang the electoral roll at a polling station in Buenos Aires
Electoral authority staff hang the electoral roll at a polling station in Buenos Aires AFP / ALEJANDRO PAGNI
A man in a wheelchair pictured at a polling station in Buenos Aires during Argentina's general election
A man in a wheelchair pictured at a polling station in Buenos Aires during Argentina's general election AFP / ALEJANDRO PAGNI

The peso fell 5.86 percent in the week before the elections, and the week ended with the dollar at 65 pesos.

Ex-president Cristina Kirchner posing for a selfie with a supporter at a polling station in Rio Gallegos in Argentina´s Santa Cruz province
Ex-president Cristina Kirchner posing for a selfie with a supporter at a polling station in Rio Gallegos in Argentina´s Santa Cruz province TELAM / STR
AFPTV / Michelle DELAROSA

Outright win

Fernandez, a 60-year-old law professor, had 48 percent of the votes -- easily crossing the threshold for outright victory -- after 99 percent of the votes had been counted, with center-right incumbent Macri trailing at 40.44 percent.

Supporters of Argentina's presidential election winner Alberto Fernandez celebrate outside his headquarters in Buenos Aires
Supporters of Argentina's presidential election winner Alberto Fernandez celebrate outside his headquarters in Buenos Aires AFP / RONALDO SCHEMIDT
Fernandez addresses supporters at a victory rally in Buenos Aires
Fernandez addresses supporters at a victory rally in Buenos Aires AFP / RONALDO SCHEMIDT

His win also caps a remarkable political comeback for his running mate, ex-president Cristina Kirchner, who will be his vice-president despite facing a slew of trials over graft stemming for her 2007-2015 presidency.

Supporters of Argentine presidential election winner Alberto Fernandez celebrate his victory in Buenos Aires
Supporters of Argentine presidential election winner Alberto Fernandez celebrate his victory in Buenos Aires AFP / RONALDO SCHEMIDT
Argentina's president elect Alberto Fernandez and vice-president Cristina Fernandez wave at supporters at the headquarters of the party in Buenos Aires
Argentina's president elect Alberto Fernandez and vice-president Cristina Fernandez wave at supporters at the headquarters of the party in Buenos Aires AFP / ALEJANDRO PAGNI

Macri, 60, pledged "a healthy and constructive opposition."

Argentina's President Mauricio Macri waves to supporters after conceding victory to Peronist candidate Alberto Fernandez in presidential elections
Argentina's President Mauricio Macri waves to supporters after conceding victory to Peronist candidate Alberto Fernandez in presidential elections AFP / JUAN MABROMATA
Crowds celebrate outside Fernandez' party headquarters in Buenos Aires after his election victory
Crowds celebrate outside Fernandez' party headquarters in Buenos Aires after his election victory AFP / ALEJANDRO PAGNI

He told his supporters he had spoken by phone to Fernandez and had "invited him to breakfast tomorrow at the Casa Rosada because he has to start a period of orderly transition that will bring tranquility to Argentines."

AFPTV / Michelle DELAROSA

Fernandez earlier vowed to end the polarization which has long divided Argentine politics between his Peronist movement and supporters of the business-friendly incumbent.

"The days of 'Us' and 'Them' are over," the mustachioed leftist leader said after voting in the swanky Puerto Madero neighborhood of Buenos Aires. "We are in an enormous crisis. Everyone has to take responsibility for what's ahead."

Thousands of ecstatic Fernandez supporters cheered and danced outside his Frente de Todos party headquarters in Buenos Aires even before the results were announced.

At Fernandez's side, Kirchner called on Macri in the last days of his rule "to take all necessary measures to alleviate this dramatic situation."

Argentina's poverty rate has risen to more than 35 percent, inflation for the year to September was at almost 38 percent, while the peso has depreciated 70 percent since January 2018.

Macri, whose popularity has fallen sharply in the last year as Argentina battled recession and market turmoil, said after he voted that competing "visions of the future" were at stake in the polls.

On a night of disappointment for the center-right, there was some consolation when the candidate for Macri's Together for Change coalition easily won the mayorship of the city of Buenos Aires.

Regional tensions

The election came amid high tensions in the region, with massive protests in neighboring Chile and Bolivia, as well as recent unrest over inequality in Ecuador.

Fernandez paid tribute to Evo Morales for his election victory in neighboring Bolivia to win a fourth term, and wished jailed ex-Brazil president Luis Inacio Lula da Silva -- 74 on Sunday -- a happy birthday.

Turnout in Sunday's general election was over 80 percent after a campaign dominated by the crippling economic crisis affecting Latin America's second-biggest economy.

Fernandez has insisted his government would not default but rather seek to renegotiate the terms of the loan, and sought to reassure voters that their bank deposits would be safe under his administration.

Since Fernandez's crushing victory in August primaries, Argentine savers have withdrawn around $12 billion from their accounts.