Simulations Plus, Inc. (AMEX: SLP), a leading provider of ADMET absorption simulation and structure-to-property prediction software for pharmaceutical discovery and development, will join the Russell Microcap(R) Index when Russell Investment Group reconstitutes its family of U.S. indices on June 22, according to a preliminary list of additions posted on www.russell.com.

Membership in the Russell Microcap Index, which remains in place for one year, means automatic inclusion in the appropriate growth and value style indexes. Russell determines membership for its equity indexes primarily by objective, market-capitalization rankings, and style attributes.

Momoko Beran, chief financial officer for Simulations Plus, said: “We are pleased and honored to have been selected for inclusion in the Russell Microcap Index. Although we don’t know the criteria used by the Russell Investment Group to constitute these lists, we believe it has been the Company’s sustained growth and profitability over a number of years, as well as our leadership position in simulation and modeling for the pharmaceutical industry, that have brought this attention to the company.”

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. An industry-leading $4 trillion in assets currently are benchmarked to them.

Annual reconstitution of Russell indexes captures the 4,000 largest U.S. stocks as of the end of May, ranking them by total market capitalization to create the Russell 3000(R) Index and Russell Microcap. The largest 1,000 companies in the ranking comprise the large-cap Russell 1000(R) Index and the next 2,000 companies become the widely used small-cap Russell 2000(R) Index. These investment tools originated from Russell’s multi-manager investment business in the early 1980s when the company saw the need for a more objective, market-driven set of benchmarks in order to evaluate outside investment managers.