RE: FTSE reshuffle: Who's in and who's out of London's blue-chip index?3 Mar 2021 20:04
Rules;
Meetings to review the constituents of the FTSE100 and FTSE Mid-250 are held on the Wednesday after the first Friday in March, June, September and December. Any constituent changes are then implemented on the next trading day following the expiry of the LIFFE futures and options contracts, which normally takes place on the third Friday of the same month. Promotion/Demotion decisions are based on the companies' relative market capitalisation at the close of business on the Tuesday prior to the Quarterly Review Meeting. The rules the Committee will apply are as follows:
* A security will be promoted into the FTSE100 at the quarterly review if it rises to 90th position, or above (by market capitalisation).
* A security will be removed from the FTSE100 at the quarterly review if it falls to 111th position, or below (by market capitalisation).
The above observations are mandatory. However, if a security is 101st or below, but doesn't fall to 111th, this does not mean it will stay in. It may still be necessary to remove it to make way for the mandatory inclusion of others. Equally, if a security rises above 101st but is not in the top 90, it may still gain entry if a FTSE 100 member becomes subject to the mandatory exclusion rule. The thresholds for the FTSE Mid-250 are 325th or above for automatic entry and 376th or below for automatic deletion. Companies in the range 326th to 375th are subject to rules similar to the FTSE 100 rules for companies in the range 91st to 110th.
Ref: https://www.financial-spread-betting.com/FTSE-stocks.html