What is driving the FTSE100....

Bostonerimus1

Irrational exuberance.

kempiejon

What is driving the FTSE100....

~50% of the FTSE100 is in 10 shares

ASTRAZENECA
HSBC HOLDINGS
SHELL
UNILEVER
ROLLS-ROYCE HOLDINGS
BRITISH AMERICAN TOBACCO P.L.C.
GSK
BP P.L.C.
BARCLAYS
RIO TINTO

so probably them. I can spot a few big winners

masonic

https://forums.moneysavingexpert.com/discussion/comment/81870774#Comment_81870774

Goes to show, concentration exists in many indexes. At the extreme, a single company (Nokia) once accounted for 70% of Finland's index.

kempiejon

Double checked my numbers and it's 47% FTSE100

The oft heard over concentrated S&P has 39% in the top 10, names we all know and love

NVIDIA CORPORATION
APPLE
MICROSOFT CORPORATION
AMAZON.COM
ALPHABET
BROADCOM
ALPHABET
META PLATFORMS
TESLA
BERKSHIRE HATHAWAY

[Deleted User]

https://forums.moneysavingexpert.com/discussion/comment/81870804#Comment_81870804

The difference being that concentration in the S&P is all related to a single sector whereas concentration in the FTSE is spread.

Middle_of_the_Road

https://forums.moneysavingexpert.com/discussion/comment/81870804#Comment_81870804

Doesn’t help the numbers having two Alphabets 🙂

phlebas192

https://forums.moneysavingexpert.com/discussion/comment/81870804#Comment_81870804

The top 10 in the FTSE comprises 10% of the entire index by number of companies. An equivalent concentration measure for the S&P should be the top 50 companies - which is 62%.

kempiejon

https://forums.moneysavingexpert.com/discussion/comment/81870163#Comment_81870163

I don't know Mr Greenspan, could be the quality, sturdy old favs are just starting to be recognised in this exciting time in Tech Software exuberance?

The_Green_Hornet

https://forums.moneysavingexpert.com/discussion/comment/81870889#Comment_81870889

Doesn't help the letters either. 🙂

aroominyork

https://forums.moneysavingexpert.com/discussion/comment/81870889#Comment_81870889

I thought there were more than two. No matter - finance is all Greek to me.