The economic slowdown is denting loan demand and eroding credit quality and earnings - but bank solvency will remain sound, says rating agency Moody's.
In a critical step towards resolving its fiscal crisis, Costa Rica's government pushed through a difficult, but much-needed tax reform package, which quickly became law on Tuesday.
Chile's central bank holds rate steady, releases economic data for October and makes GDP growth forecasts.
It's do or die for President Martín Vizcarra on Sunday, as he stakes all his political capital on approval of his proposed judicial and political reforms.
Santander and local lender BCI were among the three companies that were ranked highest by the EY study.
Consumer confidence continued to lose post-election steam in November; analysts surveyed by the central bank see weaker growth in 2019.
"The world economy is still expanding at a rapid pace, but cracks are starting to appear in the global growth picture," said Fitch Chief Economist, Brian Coulton.