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DPLM.L — FTSE 100 index addition
Diploma
Sector
Industrials
Announced
Dec 6, 2023
Effective
Dec 18, 2023
Replaced
December quarterly review
1W after inclusion
+1.6%
+1.6% vs FTSE 100
1M after inclusion
-6.9%
-6.3% vs FTSE 100
3M after inclusion
-4.0%
-5.6% vs FTSE 100
6M after inclusion
+18.1%
+11.1% vs FTSE 100
1Y after inclusion
+24.0%
+16.6% vs FTSE 100
Indexed performance around the effective date (effective close = 100)
Curated FTSE Russell quarterly review entry; prices backfilled from market data.
Prices last updated: 2026-09-16 06:30 UTC (9h ago)
Run-up in the 30 days into inclusion: +16.6%
Other stocks added to the FTSE 100
- MTLN.L — Metlen Energy & Metals joined on Aug 18, 2025.
- BAB.L — Babcock International joined on Jun 23, 2025.
- ALW.L — Alliance Witan joined on Dec 23, 2024.
- IMI.L — IMI joined on Jun 24, 2024.
- HSX.L — Hiscox joined on Dec 18, 2023.
- MKS.L — Marks & Spencer Group joined on Sep 18, 2023.
See the full FTSE 100 additions log or the index review calendar.