Intelligence Feed event · Equity · 2026-09-14

    Nike Removed from S&P 100 Index Effective September 21 Rebalancing

    Question

    Nike Removed from S&P 100 Index Effective September 21 Rebalancing

    Direct answer

    Nike has been dropped from the S&P 100 index as part of the quarterly index rebalancing schedule, effective September 21. The removal triggers systematic passive fund liquidation and highlights vulnerability regarding its long-term weighting within the price-weighted Dow Jones Industrial Average.

    Original publisher
    Market Ontology
    Evidence through
    2026-09-14
    Published
    2026-10-20
    Revision
    1 · 2026-10-20

    Cite as: Market Ontology, “Nike Removed from S&P 100 Index Effective September 21 Rebalancing”, revision 1, evidence through 2026-09-14. https://marketontology.com/market-events/2026-09-14/nike-removed-from-s-p-100-index-effective-september-21-rebalancing-806457

    EQUITY
    Nike Removed from S&P 100 Index Effective September 21 Rebalancing
    Nike has been dropped from the S&P 100 index as part of the quarterly index rebalancing schedule, effective September 21. The removal triggers systematic passive fund liquidation and highlights vulnerability regarding its long-term weighting within the price-weighted Dow Jones Industrial Average.
    NKE
    Impact
    75
    SEP 14
    SIG
    94%
    NKE
    Nike Removed from S&P 100 Index Effective September 21 Rebalancing
    Nike has been dropped from the S&P 100 index as part of the quarterly index rebalancing schedule, effective September 21. The removal triggers systematic passive fund liquidation and highlights vulnerability regarding its long-term weighting within the price-weighted Dow Jones Industrial Average.
    → De-indexing from the S&P 100 forces mandatory equity divestment from passive index-tracking funds, creating direct net order imbalances into the September 21 close.
    Impact
    Nike has been dropped from the S&P 100 index as part of the quarterly index rebalancing schedule, effective September 21. The removal triggers systematic passive fund liquidation and highlights vulnerability regarding its long-term weighting within the price-weighted Dow Jones Industrial Average.
    Affected
    NKE
    Transmission
    De-indexing from the S&P 100 forces mandatory equity divestment from passive index-tracking funds, creating direct net order imbalances into the September 21 close.

    How this development reaches the affected companies

    AssetExposure and channelDirectionEvidence
    NKEpassive institutional outflow via benchmark index deletionDown1-5dNike deleted from S&P 100 effective September 21 during quarterly rebalance.

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    What happened next

    Price follow-up pending — no stored daily closes for these assets yet.

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

    No verifiable public source recorded for this card.

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