Purpose The purpose of this paper is to investigate the interlinkages among four major stock markets in Latin America, i.e., those in Argentina, Brazil, Chile, and Mexico, as well as their associations with the US stock market, which influences financial markets globally. Design/methodology/approach Using the newly developed Hamilton filter methodology (Hamilton, 2018), the authors decompose each stock series to extract cyclical components. Findings Results indicate that the US S&P 500 is weakly contemporaneously correlated with stock market indices in Brazil, Mexico and Argentina, whereas it also leads the latter by three months. As such, sufficient time is available for policymakers and investors to enhance their forecasts of the latter. Originality/value Results indicate that the US S&P 500 is weakly contemporaneously correlated with stock market indices in Brazil, Mexico and Argentina, whereas it also leads the latter by three months. As such, sufficient time is available for policymakers and investors to enhance their forecasts of the latter.