The primary objective of this fund is to achieve an increase in investment value over time. Typically, the fund allocates at least 80% of its total assets to equity securities. These equity holdings consist of common shares and other instruments that represent either a direct ownership stake or the right to acquire one in a company or other issuing entity. The fund's manager, MFS, predominantly invests in securities issued by large-capitalization companies. While MFS generally diversifies the fund's investments across various industries, market sectors, countries, and geographical regions, it maintains the discretion to commit a substantial portion of its assets to businesses within a single industry, sector, nation, or region.