| OPI | Office Properties Income Trust |
| BXP | Boston Properties |
| DEI | Douglas Emmett |
| ARE | Alexandria Real Estate Equities |
| HIW | Highwoods Properties |
| PDM | Piedmont Office Realty Trust |
| HPP | Hudson Pacific Properties |
| KRC | Kilroy Realty |
| VNO | Vornado Realty Trust |
| BDN | Brandywine Realty Trust |
| CIO | City Office REIT |