Key Highlights

  • iShares MSCI Brazil ETF (NYSEARCA:EWZ) jumped 12.5 percent to USD 42.98 on October 5, 2026, above its 52-week high of USD 41.66 as of October 2, after Flavio Bolsonaro won the first round with 47.03 percent.
  • Lula took 45.16 percent in the October 4 vote, so a runoff is set for October 25, 2026, and the real rose about 4 percent to near 5.00 per US dollar.
  • Brazilian ADRs surged: XP rose 30.9 percent to USD 28.15, Itau Unibanco 15.5 percent, Bradesco 18.6 percent, Nu Holdings 13.0 percent to USD 15.18 and Petrobras 11.5 percent to USD 24.14.
  • iShares MSCI Brazil ETF (NYSEARCA:EWZ) held USD 8.97 billion across 46 companies, 36.14 percent in financials, as of October 2, so the rally depends on the runoff and fiscal outlook.

A 12.5 Percent Single-Day Jump

iShares MSCI Brazil ETF (NYSEARCA:EWZ) rose 12.5 percent to USD 42.98 on October 5, 2026, according to published market data. On October 2 it closed near USD 38.19 against a 52-week range of USD 28.78 to USD 41.66, so the new price is above the prior high, simple arithmetic on published numbers. The trigger was the October 4 first round, in which Senator Flavio Bolsonaro won 47.03 percent against President Lula's 45.16 percent, forcing an October 25 runoff, according to Americas Quarterly. Bolsonaro's Liberal Party also won 28 of 81 Senate seats and 121 of 513 Chamber seats. The real strengthened about 4 percent, which lifts dollar returns for the ETF. A local Brazilian rise of over 8 percent was also reported.

Why Markets Reacted

Investors read a Bolsonaro win as friendlier to fiscal restraint and business, though analysts warn the budget deficit limits what any government can do. The fund holds 46 companies, with financials at 36.14 percent, energy at 16.59 percent and utilities at 13.04 percent, which explains why banks and Petrobras jumped. Nu Holdings (NYSE:NU) rose 13.0 percent to USD 15.18, Itau Unibanco gained 15.5 percent to USD 9.92, and Vale rose only 2.8 percent. The ETF had already gained 20.90 percent year to date through October 2, so some optimism was priced in. The fund charges 0.59 percent and is listed on NYSE Arca. A stronger real adds to US dollar gains but can reverse quickly.

Risks, Peers and Dates

The runoff is three weeks away and the first round margin was 1.87 percentage points, simple arithmetic, so a Lula recovery is possible, and analysts note Lula is 80. A congress dominated by the center-right may still resist reforms. A US benchmark proxy, SPDR S&P 500 ETF Trust (NYSEARCA:SPY), has been calmer. Any follow-through on October 6 trading was not verified. Watch the Federal Reserve minutes on October 7 at 2:00 p.m. ET, jobless claims on October 8 and bank earnings on October 13, plus runoff polls before October 25. Higher US yields at 5.31 percent could limit emerging market inflows, and any hawkish surprise in the minutes may hit the real.

Where Things Stand

The answer is unresolved. iShares MSCI Brazil ETF (NYSEARCA:EWZ) priced in a Bolsonaro advantage after a 12.5 percent jump to USD 42.98, but the October 25 runoff, a large budget deficit and US yields near 5.31 percent can all change that. A strong first-round result, a record-high ETF price and a stronger real are positives, but fiscal doubts and a tight race remain, and volatility will likely stay high until the vote. This is analysis, not a recommendation.