Keppel DC REIT units closed at $2.19 on June 5, down 0.9% year to date, giving it a market value of $4.95 billion.
Jardine C&C, meanwhile, closed at $23.85 on June 5, down 16.61% year to date, giving it a market cap of $9.43 billion.
Changes are being made to the "reserve" list too, which is entirely made up of REITs and business trusts.
Netlink NBN Trust will replace Keppel DC REIT, while others in the reserve list are: CapitaLand Ascott Trust; ComfortDelGro; Keppel REIT and Suntec REIT.
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The changes will take effect on June 23.