On the eve of the second round of the presidential elections, the Ibovespa begins Friday rounding stability, with the support of Petrobras and the Vale. The fall of blue chips from banks, however, limits the gains of the index. At the same time, the electoral uncertainty pressures future interest, which penalizes domestic cyclical actions, which fall, leaving the data below the expected for the IPCA-15 in the background. Thus, at around 10:40, t…