Brazil's Bolsonaro leads with 53% of votes vs Lula's 47% in the run-off poll, according to an AtlasIntel/Bloomberg poll

Single-poll headlines of this kind are treated as directional rather than dispositive; what has historically repriced Brazilian assets is the trajectory across pollsters, not any one reading, since individual Brazilian pollsters have shown persistent house biases in past cycles and the market tends to anchor on the consensus of the major houses ahead of a runoff. The mechanism runs through fiscal credibility: the BRL, the long end of the local curve, and the listed banking complex have in prior elections traded off perceived spending discipline and the risk of state intervention, with each candidate carrying an established profile in that respect. A margin of this size in a runoff poll is within the range that has reversed in earlier contests, particularly where undecideds and late swing voters in the populous southeast have broken late. The sequence to watch is whether other houses confirm the spread, how the result maps against the first-round vote and the endorsements that followed it, and the shape of congressional composition, since governability has mattered as much as the presidency for the fiscal path. Campaign financing probes, legal challenges, and televised debate performance have been recurring swing factors at this stage. As polling rather than a result, the signal is provisional.