Is B3 open on Monday 31 December 2018?
No
No. B3 is closed on Monday 31 December 2018 for New Year's Day. It reopens on Wednesday 2 January 2019.
New Year's Day
See also B3 hours today and B3 holidays 2018
Related markets on 31 Dec 2018
 NYSE | – |
| Nasdaq | – |
 TSX | – |
| CME Equity | – |
 LSE | – |
 Xetra | New Year's Eve |
 Euronext Paris | – |
 SIX | New Year's Eve |
 TSE Tokyo | New Year's Holiday (Dec 31) |
 HKEX | – |