ERII −48.7%. ACM Research +45.8%, Lam Research +44.8%, Veeco Instruments +23.0%, Axcelis Technologies +13.6%. Weekly closes, Nov 7, 2025 = 100, log scale.

End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in ERII’s SEC industry (Special Industry Machinery, Nec) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.