SCOR proxies and semiconductor value

A new paper published on March 25 says some supply-chain metrics can be approximated from public financial statements, but only four firm-proxy pairs held up in its 12-company test. (mdpi.com) The study, by University of Central Florida researcher Juan Roman in *Logistics*, tested “SCOR-linked” ratios across 12 publicly traded firms in four sectors from 2000 to 2022. It used firm- and year-fixed-effects models to see whether those ratios moved with operating margin inside each company over time. (mdpi.com) SCOR stands for Supply Chain Operations Reference, a framework companies use to track reliability, speed, flexibility, cost, and asset efficiency in supply chains. The paper’s premise is that many SCOR measures depend on internal operating data, so outside investors and researchers usually cannot calculate them from audited filings alone. (ascm.org) (mdpi.com) Roman’s paper says its results are “associative rather than causal” because the instrumental-variable checks were weak and most estimates did not survive false-discovery-rate adjustment. The paper also says it does not produce a validated cross-industry scorecard or a scalable benchmarking system. (mdpi.com) That caveat matters for the social-media framing around “SCOR proxies.” The underlying research is a narrow screening exercise on a small panel, not a new standard for ranking supply chains across the semiconductor industry or the wider market. (mdpi.com) The second claim in the posts concerns the integrated device manufacturer, or IDM, part of the chip business. In semiconductor industry usage, an IDM is a company that designs, manufactures, and sells its own chips, unlike a fabless company that outsources production to a foundry. (samsung.com) (congress.gov) A February 2026 market report from 360iResearch estimated the global IDM market at $210.37 billion in 2025 and $222.43 billion in 2026. A social estimate of roughly $232 billion sits near that commercial-research range, but it is still an estimate rather than a figure published by the main industry trade body. (360iresearch.com) World Semiconductor Trade Statistics, the industry group that publishes the headline chip-market forecast, said in December 2025 that the overall semiconductor market is expected to approach $1 trillion in 2026. That puts an IDM estimate in the low-$200-billion range at roughly a quarter of the broader chip market, though that share is an inference rather than a published WSTS segment breakout. (wsts.org) McKinsey’s Q2 2025 semiconductor value-chain snapshot also treated IDM as a distinct layer, separating memory IDM, analog IDM, and other IDM companies within a universe of about 318 listed semiconductor and capital-equipment firms. That segmentation helps explain why social posts can talk about “the IDM layer” as one slice of semiconductor value rather than the whole industry. (mckinsey.com) Put together, the posts are tying two different ideas into one narrative: a March 2026 paper about public proxies for supply-chain efficiency, and a separate estimate that the IDM segment is worth a little over $200 billion. The first is a cautious academic result; the second is a market-sizing claim inside a semiconductor sector that WSTS says is still expanding. (mdpi.com) (wsts.org)