Is B3 open on Friday 21 October 2016?

Yes

Yes. B3 is open on Friday 21 October 2016, trading from 10:00 to 17:00 GMT-2 (São Paulo time).

10:00–17:00 GMT-2

Regular hours

Related markets on 21 Oct 2016

NYSE	09:30–16:00
Nasdaq	09:30–16:00
TSX	09:30–16:00
CME Equity	17:00^{−1 previous day}–16:00
LSE	08:00–16:30
Xetra	09:00–17:30
Euronext Paris	09:00–17:30
SIX	09:00–17:30
TSE Tokyo	09:00–15:00
HKEX	Trading Suspended for the Whole Day due to Severe Weather