Z Squared Inc. (NASDAQ: ZSQR) shares gained 1.9% in premarket trading Wednesday after the company was listed on FTSE Russell's preliminary additions to both the Russell 3000 and Russell 2000 indexes. The company is described as a digital infrastructure provider that is expanding into AI infrastructure for inference workloads.
FTSE Russell published the preliminary list of additions following the U.S. market close on Friday, May 22, 2026. According to the schedule included in that announcement, final index membership will become effective after the market close on Friday, June 26, 2026. The reconstituted Russell indexes are slated to begin trading at the market open on Monday, June 29, 2026.
In a statement included with the announcement, David Halabu, Chief Executive Officer of Z Squared, Inc., said: "Inclusion in the Russell 3000 and Russell 2000 indexes is a meaningful milestone for Z Squared and reflects the growing recognition of our company within the investment community."
FTSE Russell's U.S. indexes are broadly used by investment managers and institutional investors as the basis for index funds and as benchmarks for active strategies. FTSE Russell reports that roughly $12.2 trillion in assets are benchmarked against Russell U.S. indexes.
Membership in the Russell 3000 Index carries with it automatic inclusion in the small-cap Russell 2000 Index and placement in the relevant growth and value style indexes. FTSE Russell's process for determining membership relies primarily on objective market-capitalization rankings and style attributes.
Timeline and next steps
- Preliminary additions published after the market close on Friday, May 22, 2026.
- Final membership effective after the market close on Friday, June 26, 2026.
- Reconstituted Russell indexes begin trading at the market open on Monday, June 29, 2026.
The preliminary listing and the subsequent reconstitution schedule are the proximate developments driving the noted premarket price move. The company's focus on AI inference infrastructure was noted in the description of its business alongside the listing information.
Contextual note
FTSE Russell determines index membership by objective measures centered on market-cap rankings and style attributes. Being named on the preliminary list does not equate to final inclusion until the June reconstitution is completed on the dates specified above.