Sometimes all it takes is a phone call. President Donald Trump announced on Truth Social that he had a "very productive" conversation with Brazilian President Luiz Inacio Lula da Silva, and suddenly the iShares MSCI Brazil ETF (EWZ) is back on everyone's radar. After a year of grinding through tariff uncertainty, fiscal worries, and a currency with a mind of its own, Brazilian equities might finally be catching a break.

"We had a very productive call with President Lula of Brazil. Among the things discussed were Trade, how our Countries could work together to stop Organized Crime, Sanctions imposed on various Brazilian dignitaries, Tariffs, and various other items. President Lula and I established a relationship at a meeting which took place at the United Nations, and I believe it set the stage for very good dialogue and agreement long into the future. ...," Trump posted.

Why This Actually Matters

EWZ has had a rough ride this year, navigating U.S. tariffs, Brazilian political drama, and a real that sometimes seems allergic to stability. Even a hint of diplomatic progress between Washington and Brasília is enough to get investors thinking differently about Brazilian exposure.

The fund's biggest holdings are Petrobras, Vale, and Itaú Unibanco—exactly the kind of companies that would love to see trade tensions cool off. Commodity exporters in particular have been squeezed by tariffs that hurt margins and complicate supply chains. If those tariffs get rolled back, margins improve. And if the real stabilizes in the process, that's bonus points for dollar-based investors in EWZ.

The Optimistic Case

• Any meaningful tariff relief could force a repricing of beaten-down Brazilian stocks, pulling momentum traders back into the game.
• Export-focused sectors could see sentiment flip quickly once there's tangible policy progress to point to.
• A more stable currency would amplify returns for U.S. investors holding Brazilian assets through dollar-denominated funds.

The Reality Check

• Diplomatic honeymoon periods have a habit of ending abruptly. Without real policy follow-through, markets could reverse course just as fast. That might explain why Vale shares rose more than 3% on Wednesday while Petrobras and Itaú investors are still playing wait-and-see.
• Brazil's domestic political and fiscal challenges haven't disappeared just because Trump made a friendly phone call.
• Global risk appetite is shaky, and any bilateral progress could get drowned out by commodity weakness or a broader macro shock.

What It Means for Investors

Think of the Trump-Lula conversation as the opening scene of what could become a friendlier chapter in U.S.-Brazil relations. Whether it actually turns into substantive policy shifts remains an open question. But for now, EWZ gets to bask in the attention, and investors are wondering if Brazilian equities are finally ready to shake off a difficult year.