Nike Removed From S&P 100 Index Effective September 21 Rebalancing
Resolved · market structure · Occurred · Assessed · 1 sources
This assessment is dated 2026-09-13. Check what remains unresolved below before relying on it.
What changed relative to expectations?
Mandatory passive portfolio reallocations force programmatic liquidation of NKE shares by S&P 100 indexed funds ahead of the September 21 close.
| Question | What the evidence establishes |
|---|---|
| What was reported? | Reported factNike is scheduled for deletion from the S&P 100 index effective September 21 during quarterly rebalancing. |
| What else was confirmed? | Reported factNike stock is trading at 12-year low valuations with declining revenue and operating margin compression. |
| Does the valuation support acting? | Interpretation4 stored valuation assumptions for NKE; the latest is dated 2026-09-29. |
| What would change the assessment? | UnknownS&P 100 Rebalancing MOC Imbalance — Market-on-close rebalancing volume execution on September 21. |
What would this event cost your holdings?
Apply your own hypothetical returns to current holding values. The calculator does not infer security effects from this event.
Test this event against my holdingsReported facts
- · Nike is scheduled for deletion from the S&P 100 index effective September 21 during quarterly rebalancing.
- · Nike stock is trading at 12-year low valuations with declining revenue and operating margin compression.
- · Nike has become the lowest-ranked component by market weight in the Dow Jones Industrial Average.
Public research record
Research framework · page evidenceCompleted event assessment
passive index fund rebalancing outflows from S&P 100 tracking vehicles
| Type | Claim | Scope |
|---|---|---|
| Assumption | Nike is scheduled for deletion from the S&P 100 index effective September 21 during quarterly rebalancing. | 2026-09-13 |
| Interpretation | passive index fund rebalancing outflows from S&P 100 tracking vehicles | NKE |
Countercase, invalidators, and sources
Rebalancing volume clears with orderly dealer positioning, enabling short-term technical mean reversion.
- · S&P 100 Rebalancing MOC Imbalance — Market-on-close rebalancing volume execution on September 21.
- Nike Is Being Deleted From the S&P 100. Is Its Seat in the Dow Jones Industrial Average in Jeopardy? · 2026-09-12
What remains unresolved
- Base path
- Passive selling pressure weighs on NKE relative performance into the September 21 rebalancing effective date.
- Adverse path
- Elevated passive disposal cascades into further discretionary institutional derisking.
- Supportive path
- Rebalancing volume clears with orderly dealer positioning, enabling short-term technical mean reversion.
- · S&P 100 Rebalancing MOC Imbalance — Market-on-close rebalancing volume execution on September 21.this week
Evidence
- Nike Is Being Deleted From the S&P 100. Is Its Seat in the Dow Jones Industrial Average in Jeopardy?2026-09-12
“Nike has been removed from the S&P 100 effective September 21 as part of quarterly rebalancing, marking a significant decline for the company. With stock prices at 12-year lows, declining revenue and earnings, and operating margins plummeting, Nike is now the lowest-ranked component in the Dow Jones”
Supports: Nike has been removed from the S&P 100 effective September 21.