2021 15 Derived Indexes holiday

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ASX : ASX trading holiday

NIKKEI : NIKKEI trading holiday

SHANGHAI : SHANGHAI trading holiday

HANGSENG : HANGSENG trading holiday

STI : STI trading holiday

KLCI : KLCI trading holiday

IDX : IDX trading holiday

SENSEX : SENSEX trading holiday

DAX : DAX trading holiday

CAC : CAC trading holiday

FTSE : FTSE trading holiday

DJIA : DJIA trading holiday

NASDAQ : NASDAQ trading holiday

TSX : TSX trading holiday

IBOVESPA : IBOVESPA trading holiday

Only IBOVESPA holiday data is not provided officially
NIKKEI and STI cannot have their own bourses to release, but rather have to rely on 3rd party.