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Semiconductor Stocks Rally on Short Covering After Iran Attack Delay, with ADVANTEST, DISCO, and Kioxia Leading Gains◇

Wed Apr 8, 2026 9:17 am JST Catalyst

Major semiconductor equipment makers ? including ADVANTEST <6857>, DISCO <6146>, Lasertec <6920>, and Tokyo Electron <8035> ? as well as leading semiconductor memory and materials companies such as Kioxia Holdings and IBIDEN <4062>, all opened with heavy buy indications and surged strongly. U.S. President Trump announced on the 7th a two-week postponement of large-scale military action against Iran ahead of the ceasefire negotiation deadline, triggering a risk-on rally that lifted major semiconductor stocks with significant weightings in the Nikkei 225. However, there were no company-specific positive catalysts, and the bulk of buying activity was driven by short covering. Attention is now turning to how share prices behave once the short-covering rally runs its course.

Note: The "◇" symbol in the title indicates that this article covers multiple stock issues.

Source: MINKABU PRESS

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