Prediction odds have shifted in favor of Bolsonaro and against Lula.

That has been reflected in $EWZ performance and stronger call volumes. GS positioning metrics show a material rebuild in long-BRL exposure.

Call/Put open interest has risen materially in line with recent spot moves and now sits near historical highs.

On the vol surface: the BRL surface is heavily skewed toward $USDBRL puts, with the risk reversal trading at its lowest level since 2020.

The event continues to command a hefty vol premium, broadly in line with the highest weights seen in prior election cycles. But USD call skew has recently collapsed.