Nike Removed From S&P 100 Index Effective September 21 Following Margins Slump
Resolved · corporate · Occurred · Assessed · 1 sources
This assessment is dated 2026-09-13. Check what remains unresolved below before relying on it.
What does this change in the investment case for Nike?
Index exclusion triggers forced passive fund divestment, increasing short-term selling pressure on NKE shares.
| Question | What the evidence establishes |
|---|---|
| What was reported? | Reported factNike has been removed from the S&P 100 index effective September 21 as part of quarterly index rebalancing. |
| What else was confirmed? | Reported factNike's stock is trading near 12-year lows amid declining revenue, earnings, and operating margins. |
| Does the valuation support acting? | Interpretation4 stored valuation assumptions for NKE; the latest is dated 2026-09-29. |
| What would change the assessment? | UnknownEffective rebalance closing cross volume — Trading volume and closing imbalance prints on Friday, September 19 into the September 21 effective date. |
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 has been removed from the S&P 100 index effective September 21 as part of quarterly index rebalancing.
- · Nike's stock is trading near 12-year lows amid declining revenue, earnings, and operating margins.
- · Nike is currently the lowest-ranked component in the Dow Jones Industrial Average.
Public research record
Research framework · page evidenceCompleted event assessment
passive liquidation flow following S&P 100 benchmark deletion
| Type | Claim | Scope |
|---|---|---|
| Assumption | Nike has been removed from the S&P 100 index effective September 21 as part of quarterly index rebalancing. | 2026-09-13 |
| Interpretation | passive liquidation flow following S&P 100 benchmark deletion | NKE |
Countercase, invalidators, and sources
Passive liquidation volume is absorbed cleanly in pre-rebalance block trading without broader price dislocation.
- · Effective rebalance closing cross volume — Trading volume and closing imbalance prints on Friday, September 19 into the September 21 effective date.
- Nike Is Being Deleted From the S&P 100 · 2026-09-12
What remains unresolved
- Base path
- NKE experiences persistent technical selling pressure leading into the September 21 effective date.
- Adverse path
- Index deletion accelerates systematic factor deratings and spurs speculation on Dow Jones constituent review.
- Supportive path
- Passive liquidation volume is absorbed cleanly in pre-rebalance block trading without broader price dislocation.
- · Effective rebalance closing cross volume — Trading volume and closing imbalance prints on Friday, September 19 into the September 21 effective date.this week
Evidence
- Nike Is Being Deleted From the S&P 1002026-09-12
“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...”
Supports: Nike removed from S&P 100 effective September 21, trading at 12-year lows.