On December 16, 2024, shares of Grupo Pão de Açúcar (PCAR3) surged by over 15% amid rumors of a potential merger with the supermarket chain Dia, led by investor Nelson Tanure. The Ibovespa index closed at 123,560 points, reflecting a decline of 0.84%. Despite the rise in PCAR3 shares, which increased by 15.61% during the trading session, the overall market sentiment was weighed down by concerns regarding fiscal policies and a lack of buying catalysts. Other notable gainers included BEEF3, which rose by 5.58%, while the index experienced downward pressure from stocks like VAMO3, which fell by 8.45%. The trading day concluded with the Ibovespa showing a slight variation of -0.84%.