Brazil's Lula (46%) leads Bolsonaro (45%) in poll simulating a second round runoff, according to a Nexus/BTG Pactual poll

Brazil's Lula (46%) leads Bolsonaro (45%) in poll simulating a second round runoff, according to a Nexus/BTG Pactual poll.

Second-round simulation polls this tight between the two established frontrunners are, in past Brazilian cycles, a signal of a polarised race whose outcome will be decided by late swings among undecided and third-candidate voters, and the polling margin of error means the headline itself carries less information than the trend across successive surveys. The market-relevant distinction in Brazilian electoral episodes has been fiscal, not partisan per se: pricing of the BRL and the local curve has tended to turn on which candidate the market reads as more committed to the spending cap and primary balance discipline, with Bolsonaro historically treated as the more orthodox option and Lula-associated scenarios repriced around fiscal expansion risk, a pattern seen across his prior administrations and campaign cycles. Single-poll moves in the currency and in Ibovespa futures have typically faded unless confirmed by a sequence of polls from multiple houses; the tell is convergence, not any one print. Worth watching next are the other major pollsters' runoff simulations, any shifts in the smaller candidates' support that reshuffle second-round transfer votes, and the fiscal rhetoric from both camps, since that is the channel through which the election transmits into the DI curve and the currency. Polling of this kind early in a campaign has historically been a weak predictor of the final runoff result.