Factors at Play and Projections for SBA Communications In the second quarter, SBA communications might have gained from wireless carriers' high capital spending for network expansion amid growth in mobile data usage and accelerated 5G network deployment efforts. Moreover, the company has a resilient and stable site-leasing business model, generating most of its revenues from long-term (typically five to 10 years) tower leases that have built-in rent escalators. SBAC's portfolio expansion efforts position it ...