Nu Holdings stock sinks after Lula wins Brazil’s presidential runoff

Nu Holdings, the company behind Brazilian digital bank Nubank, had a rough Monday. Its shares fell sharply on October 26, 2026, one day after Luiz Inácio Lula da Silva won Brazil’s presidential runoff.

The slide leaves the stock roughly 36% below its January 2026 high of $18.76.

What happened on October 26

Lula took the October 25 runoff with 51.8% of the vote. His opponent, Flávio Bolsonaro, finished with 48.2%.

Markets had been leaning the other way. Investors had priced in a more favorable result for Bolsonaro. That bet had pushed Nu’s stock higher, on hopes for lower interest rates and lighter regulation.

When the results came in, that optimism unwound fast. Estimates of Nu’s single-day decline range from approximately 17% to 25%. The stock opened the session near $15.16 and closed around $12.59. At one point in premarket trading, it was down close to 22%.

Nu was hardly alone. The Bovespa, Brazil’s benchmark stock index, dropped somewhere in the range of 13% to 15%, and trading halts were reported during the session.

The currency took a beating too. The Brazilian real fell more than 10% intraday against the US dollar.

Why Nu took it on the chin

As of Q2 2026, Nu counted 139 million customers worldwide. Of those, 118 million were in Brazil. Put differently, about five out of every six Nubank customers depend on Brazilian economic conditions.

That concentration matters because a bank’s profits are tightly linked to local interest rates and fiscal policy. When investors expect rates to rise and regulation to tighten, lenders with heavy domestic exposure get repriced first.

The irony is that the business was firing on all cylinders heading into the vote. In Q2 2026, Nu reported $5.9 billion in gross revenue and $1.06 billion in net income. Its return on equity came in at 33%.

The setup before the vote

Nu entered 2026 as a classic tech-driven growth story. The January peak of $18.76 reflected that enthusiasm.

The pre-election rally added another layer. Traders who bought on expectations of a Bolsonaro win were effectively making a political wager through a bank stock. When that wager went wrong, the exit was crowded.

What this means for Nu and Brazil-exposed investors

The next real data point arrives soon. Nu’s Q3 2026 earnings are expected around November 12. That report will offer the first look at whether operating momentum held up through the election period.

The broader lesson extends beyond Nu. The Bovespa’s slide and the real’s sharp drop show how quickly sentiment toward Brazilian assets can flip on a single political outcome. A margin of 51.8% to 48.2% was enough to reset expectations across an entire market in one trading day.