How Micron Became 25% of a Value ETF - Morningstar

Micron Technology's 24.9% stake in the iShares MSCI USA Value Factor ETF (VLUE) highlights how index construction rules can lead to significant concentration in a single stock. The ETF's methodology, ... Read original →

Micron’s near-25% weighting in VLUE exposes a structural flaw in value-factor ETFs: relying on forward P/E to identify 'cheap' tech stocks ignores the extreme cyclicality of semiconductor valuations. A downturn in DRAM/NAND pricing—triggered by slowing AI server demand—would sharply erode Micron’s earnings visibility, dragging down the entire fund. From a compliance standpoint, breaching the 25% concentration threshold would revoke the ETF’s diversified tax status, triggering double taxation and forcing disruptive rebalancing. Rivals like SK Hynix and Nanya (Taiwan, China) could exploit customer anxieties over supply chain concentration. Over the next 12–24 months, factor-based ETFs will likely need to redefine 'value' for hard-tech sectors by incorporating metrics like inventory cycles or capex intensity—or risk chronic single-stock exposure that contradicts true value investing principles.