This insider cluster is too small relative to CME's $99B market cap to warrant a trading signal. The CEO's $3.94M sale is likely personal diversification or tax-related, not a bearish view on the company. Monitor for any material increase in insider selling volume or a shift to C-suite buying before adjusting positioning.
Price Chart
Executive Summary
CME Group Chairman & CEO Terrence Duffy sold ~$4.1M in stock over two days, with a director selling an additional $140K. The CEO's sale of 14,372 shares at $274.41 is the dominant transaction, representing 0.004% of CME's $99.1B market cap — a trivial amount relative to company size. This is a routine cluster of sales, likely tied to personal liquidity or tax planning, and carries no bearish signal given the immaterial dollar value and the weak predictive power of insider sales clusters per academic literature.
Key Financial Metrics
Key Facts
- Chairman & CEO Terrence Duffy sold 14,372 shares at $274.41 for ~$3.94M on 2026-09-10
- CEO also sold 628 shares at $275.03 for ~$172.7K on same day
- Director Elizabeth Cook sold 500 shares at $280.11 for ~$140K on 2026-09-14
- Total cluster value: ~$4.08M, representing 0.004% of $99.1B market cap
- All transactions are open-market sales (code S)
- No insider buying in the cluster
Financial Impact
Total insider sales of ~$4.08M represent 0.004% of CME's $99.1B market cap — economically trivial
Risk Factors
- Insider sales at a mega-cap like CME are rarely informative — this cluster is noise
- Historical calibration shows past CME reports have a 10% win rate at T+20, suggesting the stock is hard to predict on filing signals alone
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-CME-1789432300186 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 15, 2026 17d ago | Insider Cluster | $275.09 $267.21 | ▼ −2.86% | ▼ −3.68% | $265.10 (−3.63%) |
Aug 19, 2026 6w ago | ANALYST-DOWNGRADE | — | awaiting T+5 | — | — |
Jul 22, 2026 10w ago | 8-K | $249.24 $265.44 | ▲ +6.50% | ▲ +8.90% | $265.10 (+6.36%) |
Jun 18, 2026 15w ago | ANALYST-UPGRADE | $246.38 $225.00 | ▼ −8.68% | ▼ −7.01% | $265.10 (+7.60%) |
Jun 17, 2026 15w ago | 8-K | $252.54 $231.68 | ▼ −8.26% | ▼ −7.22% | $265.10 (+4.97%) |
Jun 11, 2026 16w ago | ANALYST-UPGRADE | $269.53 $246.38 | ▼ −8.59% | ▼ −9.26% | $265.10 (−1.64%) |
May 19, 2026 19w ago | DEFA14A | $290.04 $277.34 | ▼ −4.38% | ▼ −6.18% | $265.10 (−8.60%) |
May 19, 2026 19w ago | Insider Cluster | $290.04 $277.34 | ▼ −4.38% | ▼ −6.18% | $265.10 (−8.60%) |
Apr 22, 2026 23w ago | 8-K | $285.58 $283.30 | ▲ +0.80% | ▲ +0.85% | $265.10 (+7.17%) |
Mar 27, 2026 27w ago | Court Ruling | $293.69 $308.51 | ▲ +5.05% | ▲ +1.18% | $265.10 (−9.73%) |
US Market Status
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