The share price of Cosan S.A. (NYSE:CSAN) fell by 7.4% between December 17 and December 24, 2025, putting it among the Energy Stocks that Lost the Most This Week.
Cosan S.A. (NYSE:CSAN) is a Brazilian conglomerate engaged in fuel distribution. It operates through Raízen, Compass, Moove, Rumo, and Radar segments.
Cosan S.A. (NYSE: CSAN) has continued on a downward trajectory since December 5, when former Brazilian President Jair Bolsonaro endorsed his son, Senator Flavio Bolsonaro, as the far-right candidate for the presidential election scheduled for next October. The news came as a surprise to many, as it had been expected that the former president would nominate São Paulo Governor Tarcísio de Freitas, viewed as a more market-friendly, execution-minded candidate who might restore fiscal discipline after 2027.
As a result, the country’s benchmark stock index Bovespa, which had hit a record of more than 164,000 points, plunged by over 4.3% on the same day, with the Brazilian Real also slipping by as much as 3% against the US dollar.
Moreover, Senator Flavio Bolsonaro added to the skepticism later on by suggesting that he could exit the presidential elections race for the right ‘price’, while his allies pushed in Congress to reduce his father’s 27-year prison sentence. However, the senator has since retracted his statement and reaffirmed his commitment to the candidacy. Moreover, he has been busy organizing meetings with the country’s business and finance leaders to address concerns over his economic policies.
Following the recent plunge driven by Brazil’s political and economic uncertainty, the share price of Cosan S.A. (NYSE:CSAN) has fallen by over 34% since the beginning of 2025.
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