Investigate / reported ownership
CME
Cme Group Inc
7 tracked reported owners · snapshot updated 2026-10-04. Delayed disclosures, not live holdings or an investment recommendation.
Who reports owning CME?
Select a manager to inspect their portfolio. Reports may cover different quarters; portfolio weights describe disclosed long 13F holdings, not total economic exposure.
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Joel Greenblatt | 0.2% | 40q | $332M | 1,505,427 |
| 2 | Seth Klarman | 2.5% | — 1q | $137M | 619,000 |
| 3 | Mairs & Power Funds | 0.4% | — 1q | $43M | 195,585 |
| 4 | Viking Global Investors | 0.1% | 7q | $34M | 152,980 |
| 5 | William Von Mueffling | 2.1% | 40q | $14M | 63,835 |
Go beyond ownership.
CME enables trading in futures, options, cash and over-the-counter products, provides market data and analytics, and operates central-counterparty clearing services. Revenue is substantially derived from fees on transactions executed and cleared in its markets.
Question to investigate: How dependent are CME Group's results on market volatility and trading activity, which the company says it does not control?
Company research reviewed 2026-10-02; a dated source-linked starting point, not the investors’ stated reasons.
Understand the business and investment case →Filing dates and original SEC sources
- Joel Greenblatt · 2026Q2 · filed 2026-09-02 ↗
- Seth Klarman · 2026Q2 · filed 2026-08-13 ↗
- Mairs & Power Funds · 2026Q2 · filed 2026-08-14 ↗
- Viking Global Investors · 2026Q2 · filed 2026-08-14 ↗
- William Von Mueffling · 2026Q2 · filed 2026-07-29 ↗
- Thomas Gayner · 2026Q2 · filed 2026-07-31 ↗
- Lindsell Train · 2026Q2 · filed 2026-07-15 ↗
Reported position changes
Net disclosed share changes—not individual trades or execution dates. NEW has no prior-position percentage comparison; EXIT weight refers to the previous report.
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Seth Klarman | NEW | 2.5% | New position | $137M | Aug 13, 2026 |
| William Von Mueffling | TRIM | 2.1% | -95% | $14M | Jul 29, 2026 |
| John Armitage | EXIT | 3.9% | -100% | $0 | Jul 21, 2026 |
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Long US 13F disclosures omit shorts and can be amended. CUSIP 12572Q105. No current price, valuation or manager motive is inferred.