Most Latin American currencies weakened on Monday with Brazil's real giving up early gains and Argentina's peso sliding after a surprise twist in its presidential election.
The currencies of Brazil, Colombia and Peru traded between flat to 0.3pc lower. Mexico's peso, however, firmed 0.1pc.
Argentina's currency fell 0.9pc after the main populist challenger in the presidential election, Cristina Fernandez de Kirchner, surprised investors by saying she would run as a vice presidential candidate and not for the top job.
"We view the market implications of this announcement as net negative," said analysts at Citi Research in a note. "Uncertainty has increased and thus markets will likely remain sensitive to the news flow in coming weeks as the political landscape shifts."
"It is difficult to assess the impact of the news on the election dynamics.
We therefore expect high volatility as the story develops... (and) expect central bank intervention to smooth peso volatility if the market reaction is ultimately negative," they said.
Brazil's real slipped slightly, as concerns over slowing pace of the economy's growth intensified.
Brazilian President Jair Bolsonaro took to Twitter to emphasize the government's commitment to wide-ranging economic reforms, as a regular central bank survey of economists showed growth forecasts for this year slumping to a new low.
Lower house speaker Rodrigo Maia had said on Friday the house will vote on the government's pension reform bill no later than the start of July.
Growth concerns had investors alert for a more supportive policy stance from the central bank and saw the real lose 0.4pc
Shares in Sao Paulo were up 0.3pc at 1402 GMT in a volatile session as financial and energy stocks gained.
Stocks in Mexico and Colombia fell, in line with world stocks that fell as concerns mounted about an escalating fallout from a US crackdown on China's Huawei Technologies.