Capstone Advisors Completes $11.8 Million Retail Acquisition of The Island at Carlsbad December 3, 2015 by Webmaster Carlsbad, CA – Capitalizing on its continued strength in adding value to well-located retail properties, Carlsbad-based Capstone Advisors has acquired a property in its own backyard with the purchase of The Island @ Carlsbad. (Read Press Release)