The table below lists the GICS sector weightings of the FTSE 100 index. Currently (9/30/2018), the largest sector is the Financials sector that makes up 19.7% of the index. Energy companies come second with a weighting of 17.2%. The largest individual index component is HSBC Holdings whose weight is 6.9%, followed by Royal Dutch Shell Class A (6.2%). However, Shell has two share lines part of the FTSE 100 and together with Class B, Royal Dutch Shell makes up 11.3% of the index.
[FTSE 100 Index] – GICS Sector Weightings
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