Brazilian Senator Bolsonaro leads President Lula 46 to 44 percent ahead of the October 25th presidential runoff, according to a Quaest poll

A two-point lead at this stage of a Brazilian runoff sits well within typical polling error, and past Brazilian runoffs have seen late swings larger than this, so the poll itself settles little; what it does is keep the race live into the final stretch. The transmission channel for BRL, local rates and the equity complex has historically run through fiscal credibility rather than ideology per se: the market's sensitivity is to signals on spending rules, state-linked enterprises and intervention in fuel pricing, and in past cycles assets have tended to trade the perceived fiscal anchor of the likely winner rather than the candidate's name. Worth watching is whether other pollsters confirm the narrowing or reversal, since a single outlier poll has on previous occasions faded once the broader panel caught up, and whether undecideds and abstention patterns shift in the final debates and campaigning. The follow-on calendar is compressed now: late polls, any candidate missteps in closing appearances, and then the question of governability, since congressional arithmetic has historically mattered as much as the presidency for what a winner can actually pass. Election-eve positioning in BRL and the curve has tended to be whippy and thin, with the real direction set after the result rather than before it.