The FTSE UK Indices are reviewed in March, June, September and December. Companies will be ranked in order of full market capitalisation (value).
Companies will be added to the index if their rank:
For the FTSE 100, has risen to 90th or above
For the FTSE 250, has risen to 325th or above
Companies will be removed from the index if their rank:
For the FTSE 100, has fallen to 111th or below
For the FTSE 250, has fallen to 376th or below