In the past week (July 27–31, 2026), TTEN3, GFSA3 and PMAM3 led the biggest losses on B3, with declines of 22.57%, 20.59% and 20.00%, respectively. Três Tentos (TTEN3) filed clarifications with the CVM about meetings, while Gafisa (GFSA3) announced approval for the exercise of R$ 280 thousand in warrants and a reduction in Fator Capital’s stake to 5%. Paranapanema (PMAM3), in turn, reported a series of events, including negative EBITDA of R$ 31 million in 1Q26, a 2nd amendment to a settlement agreement, approval of up to R$ 110 million in convertible debentures and the subsequent cancellation of debentures.
Among the other losses in the ranking, CSNA3 retreated 15.24% and USIM5 dropped 14.52%. During the period, CSN (CSNA3) approved a bond exchange offer maturing in 2028, in addition to projecting EBITDA of R$ 5.4 billion, while Usiminas (USIM5) reported profit of R$ 428 million in 2Q26, announced CAPEX between R$ 1.2 billion and R$ 1.4 billion in 2026 and disclosed a target to cut emissions by 8% by 2030. In the telecommunications sector, TIMS3 fell 9.63% and VIVT3 declined 9.25%; TIM (TIMS3) reported profit of R$ 1.0 billion in 2Q26, a 7.8% increase in EBITDA-AL in 1H26 and approval of up to R$ 670 million in capital contributions to subsidiaries, while Telefônica Brasil (VIVT3) reported profit of R$ 2.8 billion in 1H26 and R$ 1.6 billion in 2Q26.
Also among the biggest losers were ENJU3, down 10.26%, DASA3, with an 8.42% drop, and SOJA3, which retreated 6.93% for the week.
| Stock | Company | Sector | Change | Close |
|---|---|---|---|---|
| TTEN3 | 3TENTOS | Non-Cyclical Consumption | -22.57% | R$ 11,80 |
| GFSA3 | GAFISA | Cyclical Consumption | -20.59% | R$ 0,27 |
| PMAM3 | PARANAPANEMA | Basic Materials | -20.00% | R$ 0,24 |
| CSNA3 | SID NACIONAL | Basic Materials | -15.24% | R$ 4,84 |
| USIM5 | USIMINAS | Basic Materials | -14.52% | R$ 7,36 |
| ENJU3 | ENJOEI | Information Technology | -10.26% | R$ 0,70 |
| TIMS3 | TIM | Communications | -9.63% | R$ 19,43 |
| VIVT3 | TELEF BRASIL | Communications | -9.25% | R$ 32,63 |
| DASA3 | DASA | Health Care | -8.42% | R$ 2,61 |
| SOJA3 | BOA SAFRA | Non-Cyclical Consumption | -6.93% | R$ 5,51 |
Read the full articles
- Paranapanema (PMAM3) announces 2nd amendment to settlement agreement
- Usiminas (USIM5) announces target to cut emissions by 8% by 2030
- CSN (CSNA3) approves bond exchange and projects EBITDA of R$ 5.4 billion
- CSN (CSNA3) approves bond exchange offer maturing in 2028
- Gafisa (GFSA3) approves exercise of R$ 280 thousand in warrants
- Paranapanema (PMAM3) reports negative EBITDA of R$ 31 million in 1Q26
- Usiminas (USIM5) reports profit of R$ 428 million in 2Q26
- Usiminas (USIM5) announces CAPEX of R$ 1.2 billion to R$ 1.4 billion in 2026
- Fator Capital cuts its stake to 5% in Gafisa (GFSA3)
- Três Tentos (TTEN3) files clarifications with the CVM about meetings
- Paranapanema (PMAM3) approves up to R$ 110 million in convertible debentures
- Paranapanema (PMAM3) announces cancellation of debentures
- Telefônica Brasil (VIVT3) reports profit of R$ 2.8 billion in 1H26
- TIM (TIMS3) reports profit of R$ 1.0 billion in 2Q26
- Telefônica Brasil (VIVT3) reports profit of R$ 1.6 billion in 2Q26
- TIM (TIMS3) approves capital contribution of up to R$ 670 million in subsidiaries
- TIM (TIMS3) records a 7.8% increase in EBITDA-AL in 1H26
