AI assistants most often recommend Nubank Invest for stock trading apps in 🇧🇷 Brazil (Português), naming it in 100% of the buyer questions we tested, followed by XP Investimentos and BTG Pactual Digital. We asked an AI model the questions buyers ask about stock trading apps and tallied which brands it named most — "share of voice" in AI answers, who AI recommends when no human is watching.
| # | Brand | AI share of voice |
|---|---|---|
| 1 | Nubank Invest | 6/6 (100%) |
| 2 | XP Investimentos | 6/6 (100%) |
| 3 | BTG Pactual Digital | 5/6 (83%) |
| 4 | Rico | 5/6 (83%) |
| 5 | Tesouro Direto | 1/6 (17%) |
| 6 | Modal Mais | 1/6 (17%) |
Method: 6 representative buyer questions via a large language model, 🇧🇷 Brazil (Português). Updated 7/5/2026. A proxy for how AI assistants describe this category.
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