Following is the impact of the constituent changes on the sector-based sub-indices of Markit CDX.NA.IG.28 that will roll on 20 March 2017. Please note that this list remains provisional until publication of the final annexes for the indices.
| Sub-index Name | Removals | Additions |
| Markit CDX.NA.IG.ENRG | KINDER MORGAN ENERGY PARTNERS, L.P. | KINDER MORGAN, INC. |
| Markit CDX.NA.IG.CONS | STARWOOD HOTELS & RESORTS WORLDWIDE, INC. | |
| Markit CDX.NA.IG.CONS | LAMB WESTON HOLDINGS, INC. | |
| Markit CDX.NA.IG.ENRG | | ENCANA CORPORATION |