Is TSE Tokyo open on Monday 31 December 2018?
No
No. TSE Tokyo is closed on Monday 31 December 2018 for New Year's Holiday (Dec 31). It reopens on Friday 4 January 2019.
New Year's Holiday (Dec 31)
See also TSE Tokyo hours today and TSE Tokyo holidays 2018
HKEX
SSE
KRX
NSE
SGX
ASX
NYSE
TSX