WhichIndex

Every stock index, and every company in it

Members and weights of 57 stock indexes, and the reverse lookup: which indexes each of 12045 companies is in. Every table carries its source and date.

The indexes we track

Shade shows how many companies each index has.

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Recently updated

The latest data date per index
IndexCompaniesData as of
VN-Index4082026-11-12
TASI2522026-11-12
Shanghai Composite23222026-11-12
SMI202026-11-12
S&P Merval232026-11-12
Nikkei 2252252026-11-12
Nifty 50502026-11-12
Nasdaq-1001002026-11-12
NYSE Composite18532026-11-12
LuxX92026-11-12
KSE 1001002026-11-12
KOSPI8252026-11-12
JSE Top 40402026-11-12
Ibovespa742026-11-12
ISEQ 20202026-11-12
IDX Composite9802026-11-12
IBEX Small Cap302026-11-12
IBEX Medium Cap202026-11-12
FTSE MIB402026-11-12
FTSE 1001002026-11-12
Euro Stoxx 50502026-11-12
EGX 30302026-11-12
DAX402026-11-12
CAC 40402026-11-12
ATX202026-11-12
ADX General792026-11-12
TA-35352026-11-11
Straits Times Index302026-11-11
S&P/TSX Composite2152026-11-11
S&P/BMV IPC352026-11-11
S&P/ASX 2002012026-11-11
OMX Vilnius192026-11-11
OMX Tallinn182026-11-11
OMX Stockholm 30302026-11-11
OMX Riga82026-11-11
OMX Iceland 15152026-11-11
OMX Copenhagen 20192026-11-11
Nasdaq Composite33752026-11-11
MOEX Russia412026-11-11
Dow Jones302026-11-11
AEX292026-11-11
Russell 200019502026-11-10
IBEX 35352026-11-10
BEL 20202026-11-10
S&P/NZX 50492026-10-31
OMX Helsinki 25252026-10-30
WIG20202026-10-23
S&P 5005012026-10-23
Hang Seng952026-10-02
PSI142026-09-30
BIST 1001002026-09-30
ASE General682026-09-30
AMX252026-09-30
AMS Next 20202026-09-30
OSEBX622026-09-25
QE Index202026-09-01
S&P IPSA302026-06-30