Upcoming FTSE 100 additions
Funds must own every addition by the effective close; this register tracks the window. Data as of Sep 15, 2026.
36days
until the FTSE 100 review. Nothing is pending right now.
Pencilled in for Dec 8, 2026, typical window
Pending entries
Announced, not yet effective
| No. | Stock | Days left | Since announced | Date effective | Date announced | Replaces |
|---|---|---|---|---|---|---|
| No entries pending as of Sep 15, 2026. New announcements are entered here automatically, with a countdown to the effective close. | ||||||
Most recent entries
Returns measured from the effective-date close
| No. | Stock | Run-up 30d | 1W | 1M | 3M | 6M | 1Y | Date effective |
|---|---|---|---|---|---|---|---|---|
| No entries recorded yet. | ||||||||
Losses are entered in red. A blank cell means that window hasn't elapsed yet.
About the FTSE 100
FTSE Russell maintains the FTSE 100, a free-float-weighted index of large companies whose shares qualify on the London Stock Exchange. Size rankings and eligibility rules, including minimum free float and liquidity, govern the selections. The quarterly review uses buffer rules: a company does not necessarily enter merely because it briefly ranks among the top 100, limiting unnecessary turnover at the boundary.
Reviews take place in March, June, September and December, with rankings assessed early in the review month and the results normally announced before changes take effect after the third Friday's close. Fast-entry rules can admit an exceptionally large newly listed company between regular reviews. The FTSE 250 is closely linked: a promotion to the 100 often removes a name from the mid-cap basket.
ISF, VUKE and CUKX are examples of funds tracking the FTSE 100. Its membership boundary can shift with share prices, corporate actions and the market value of a company's freely tradable shares. An addition therefore reflects the review rules as well as the stock's own circumstances. Use the recorded effective-date close as the reference point for the return windows rather than treating the review announcement as a trade signal.
What usually happens after the bell
Across 0 tracked FTSE 100 additions
| Window after close | Average | Median | Finished higher | vs FTSE 100 |
|---|---|---|---|---|
| 1W | — | — | Not yet elapsed | — |
| 1M | — | — | Not yet elapsed | — |
| 3M | — | — | Not yet elapsed | — |
| 6M | — | — | Not yet elapsed | — |
| 1Y | — | — | Not yet elapsed | — |
| Run-up, 30 days before the close | — | Average move into past inclusions | ||
How FTSE 100 additions work
FTSE Russell reviews quarterly using end-of-Tuesday rankings after the first Friday of the review month. Changes take effect after the close on the third Friday. The March review also determines the FTSE 250 reshuffle that feeds future promotions. A change is announced first and only takes effect after the close on the effective date. Between those two dates, every fund tracking the index (ISF, VUKE, CUKX) has to buy the incoming stock, which is why the window matters to traders.
What happens to a stock after it joins FTSE 100
Inclusion is often described as a guaranteed pop. The tracked history is more mixed: . Returns are measured from the effective close and can also be viewed against the index itself, so a rising market doesn't get counted as an inclusion effect.
When are FTSE 100 changes announced?
Quarterly review (Mar / Jun / Sep / Dec). Scheduled review, announcement and effective dates for the next twelve months are listed on the index review calendar. Ad hoc changes — a takeover, a bankruptcy, a fast-track promotion — are announced outside that schedule, usually with a few days' notice.