Nubank parent Nu craters as Lula's runoff win torches Brazil trade

Nu Holdings had nowhere to hide Monday. Shares of the Nubank parent dove on Oct. 26, 2026, the first session after Luiz Inácio Lula da Silva won Brazil's presidential runoff. The stock opened near $15.16 and closed around $12.59 — a single-day loss estimated somewhere between 17% and 25%. At one premarket point it was down close to 22%.

The damage leaves Nu roughly 36% below its January 2026 high of $18.76. Lula claimed the Oct. 25 runoff with 51.8% of the vote; Flávio Bolsonaro took 48.2%.

Wall Street had leaned the other way. Investors priced in a friendlier outcome for Bolsonaro, betting that lower interest rates and lighter regulation were coming, and that optimism had pushed Nu's stock up before the vote. When the count flipped, the exit turned crowded fast.

Nu wasn't the only casualty. Brazil's benchmark Bovespa index dropped somewhere in the 13% to 15% range, with trading halts reported during the session. The Brazilian real sank more than 10% intraday against the US dollar.

That matters more for Nu than for most. As of Q2 2026, the company counted 139 million customers worldwide, 118 million of them in Brazil — about five of every six. Banks live and die by local rates and fiscal policy, so lenders with heavy domestic exposure get repriced first when investors brace for tighter conditions.

The irony: the business was humming before the vote. Q2 2026 brought $5.9 billion in gross revenue and $1.06 billion in net income, with return on equity at 33%. The next real checkpoint lands around Nov. 12, when Nu reports Q3 2026 earnings and shows whether that momentum survived the election.