In brief
B3B3OrganizationOperator of Brazil's exchange and market infrastructure, listed as B3SA3. Revenue tracks traded volumes; tax and regulatory disputes (Carf, Cade) make up its contingent risk.Open in the Market Map ↗ extended equity trading hours from November 3.
Trading runs from 10am to 5:55pm.
What we know
04Verified fact · material
B3B3OrganizationOperator of Brazil's exchange and market infrastructure, listed as B3SA3. Revenue tracks traded volumes; tax and regulatory disputes (Carf, Cade) make up its contingent risk.Open in the Market Map ↗ adjusted trading hours from November 3, 2026, following the end of daylight saving time in the US.
Change.
Verified fact
According to B3B3OrganizationOperator of Brazil's exchange and market infrastructure, listed as B3SA3. Revenue tracks traded volumes; tax and regulatory disputes (Carf, Cade) make up its contingent risk.Open in the Market Map ↗, details are in Circular Letter 050/2026-VNC.
Circular.
Sources[01]
Transmission to assets
Market read-through
The change is seasonal and repeats the yearly adjustment to US hours.
Portfolio impact
01B3SA3uncertain
More trading time.
No volume effect.
What would change the view: Volume rises.
Direction is an explanatory hypothesis, not a forecast or recommendation.
Next signals
What to watch
- End-of-day volume
- Next adjustment in March
Limits of the reporting
What remains uncertain
- Derivatives hours appear in only one source.
Full sources
0301
B3B3 ajusta horários de negociação de ações e derivativos acompanhando fim do horário de verão nos EUAofficial source
02Money TimesB3 amplia horário de negociação a partir de terça-feira (3); vejaindependent newsroom
03Investidor10B3 amplia horário de negociação a partir desta terça (3)independent newsroom