Office REITs

Flight-to-quality has bifurcated the office sector permanently.

Trophy and Class A assets in gateway CBDs and Sun Belt BBDs are posting occupancy gains, positive rent mark-to-markets, and early-renewal demand, while non-prime stock faces structural vacancy with no credible demand path. BXP's CBD portfolio operates at 91.8% occupancy versus 13% direct vacancy for the broader office market across its four primary CBDs; Vornado's Manhattan Class A-plus universe sits at mid-single-digit vacancy while broader Manhattan stock carries far higher availability; Cousins' Sun Belt portfolio reached 93.0% leased with 19.8% cash rent spreads. The divergence is no longer cyclical: JLL data cited by Highwoods shows prime vacancy 640 basis points below non-prime, the widest spread since tracking began.

AI demand has crossed from coastal phenomenon to Sun Belt catalyst.

AI and technology tenants now represent approximately 62% of active San Francisco CBD demand per BXP management and approximately 60% of San Francisco's record 8.4 million square feet of tenant demand per Vornado, while Cousins and Highwoods both reported AI-adjacent hyperscaler leasing in Austin, Nashville, Tempe, and Atlanta this cycle. Kilroy identified approximately 500,000 square feet of AI and robotics requirements actively seeking Bay Area and South Bay space, naming robotics as a discrete new demand category. The geographic broadening of AI-driven office absorption from two coastal markets into Sun Belt BBDs is the most consequential demand development of this cycle.

Life science supply-demand imbalance is the sector's most acute structural risk.

Alexandria disclosed that availability in its top three life science markets reached approximately 29% of total RSF in 2025, up from approximately 4% in 2021, with tenant RSF demand requirements down more than 60% over the same period. The company recognized $865.9 million in year-to-date impairments, guided to additional charges on 2027 disposition candidates, and formally abandoned its Palo Alto lab conversion strategy after citing 'limited demand for life science tenants.' Kilroy's Kilroy Oyster Point Phase 2 entered the stabilized portfolio at 7% occupancy, suppressing portfolio-wide occupancy by 380 basis points and generating an NOI loss, with no lease announcement disclosed.

Vornado's 350 Park JV and Manhattan rent levels signal demand-driven new supply.

Vornado formally closed the 350 Park Avenue joint venture with Kenneth Griffin's affiliate, contributing the property at a $900 million valuation into a planned approximately 1,900,000-square-foot tower anchored by Citadel Enterprise Americas, financed by a record $3.3 billion construction loan. Manhattan office transactions were up 23% net in Q3 2026 per BXP, SL Green crossed 95% leased occupancy with mark-to-market rents running more than 20% above expiring leases, and Vornado reported 37.2% GAAP mark-to-markets on 489,000 square feet of Manhattan deals at an average starting rent of $123 per square foot. Institutional demand has crossed from flight-to-quality leasing into demand-driven new development, a threshold no other tracked market has reached this cycle.