FormFactor Joins Russell 1000 Large-Cap Index

Key Facts

In a move reflecting the company's growing market capitalization and expanding footprint in the semiconductor sector, FormFactor has announced its official inclusion in the Russell 1000 Index. According to reports, the company will be added to the US large-cap index effective June 29, 2026. This selection is part of the annual Russell index reconstitution based on market capitalization rankings and membership in the broad-market Russell 3000 Index.

This promotion from the small-cap Russell 2000 to the Russell 1000 is a significant milestone, placing FormFactor alongside industry peers such as Teradyne and Advantest. Per market data, inclusion in large-cap indices typically drives capital inflows from passive funds tracking the benchmark, enhancing liquidity and institutional ownership. The company's previous quarterly performance demonstrated the sustained growth necessary to support this transition to the large-cap category.

Technically, traders are monitoring liquidity levels ahead of the late-June implementation, with instrument prices holding steady as of the June 24, 2026 close. Looking at the economic calendar, investors are eyeing US Initial Jobless Claims and the Philadelphia Fed Manufacturing Index on June 18, which may influence tech sector risk appetite before the index changes take effect.