The table below lists the Sector weightings of the FTSE 100 index. Currently (12/31/2021), the largest sector is the Consumer Staples sector that makes up 17.91% of the index. Financial companies come second with the weighting of 17.82%. The largest individual index constituent is AstraZeneca plc whose weighting is 6.72%, followed by Unilever (5.04%). Five of the largest constituents represent approximately 25% of the whole index.
FTSE 100 Index – Sector Weightings
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