Intelligence Feed event · Policy · 2026-07-18

    Taiwan semiconductor shares were caught in the global AI/semiconductor sell-off

    Question

    Taiwan semiconductor shares were caught in the global AI/semiconductor sell-off

    Direct answer

    Relevant for TSMC, UMC, and the TAIEX as investors reassess AI capex and foundry demand.

    Original publisher
    Market Ontology
    Evidence through
    2026-07-18
    Published
    2026-10-20
    Revision
    1 · 2026-10-20

    Cite as: Market Ontology, “Taiwan semiconductor shares were caught in the global AI/semiconductor sell-off”, revision 1, evidence through 2026-07-18. https://marketontology.com/market-events/2026-07-18/taiwan-semiconductor-shares-were-caught-in-the-global-ai-semiconductor-sell-off-a216bb

    POLICY
    Taiwan semiconductor shares were caught in the global AI/semiconductor sell-off
    Relevant for TSMC, UMC, and the TAIEX as investors reassess AI capex and foundry demand.
    2330.TWTAIEXUMC
    Impact
    75
    JUL 18
    SIG
    2330.TWTAIEXUMC
    Taiwan semiconductor shares were caught in the global AI/semiconductor sell-off
    Relevant for TSMC, UMC, and the TAIEX as investors reassess AI capex and foundry demand.
    Impact
    Relevant for TSMC, UMC, and the TAIEX as investors reassess AI capex and foundry demand.
    Affected
    2330.TWTAIEXUMC
    Source facts

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    What happened next

    AssetCallBase close+1 day+5 days+20 days
    UMCMixed21.25 2026-07-17-4.47%-8.33%-9.88%

    Closing prices from stored daily bars; returns measured from the last close on or before the event date. Not a recommendation.

    Sources

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