SCHEDULE: BlackRock's 4.2% Passive Stake in MarketAxess Holdings

BlackRock, Inc. reports a 4.2% passive ownership stake in MarketAxess Holdings Inc., holding 1,572,513 common shares.

Summary

• BlackRock, Inc. filed an Amendment No. 4 to Schedule 13G, disclosing its beneficial ownership in MarketAxess Holdings Inc.
• As of September 30, 2025, BlackRock, Inc. beneficially owns 1,572,513 shares of MarketAxess Holdings Inc. common stock.
• This ownership represents 4.2% of the total outstanding common stock of MarketAxess Holdings Inc.
• BlackRock, Inc. holds sole voting power over 1,484,794 shares and sole dispositive power over 1,572,513 shares.
• The securities were acquired and are held in the ordinary course of business, without the intent to change or influence control of the issuer.
• No single subsidiary of BlackRock, Inc. is reported to beneficially own 5% or greater of the outstanding shares of MarketAxess Holdings Inc.

Sentiment

Score: 7

Explanation: The filing is a routine disclosure of a passive ownership stake by a major institutional investor. It indicates continued confidence in the issuer without suggesting any immediate negative or positive catalysts beyond the ongoing investment.

Positives

• BlackRock, a major institutional investor, maintains a significant passive stake in MarketAxess Holdings Inc., indicating continued confidence in the company's long-term prospects.
• The filing explicitly states the holdings are for ordinary course of business, not for control, suggesting stability in the ownership structure and no immediate activist intentions.

Negatives

• No explicit negatives related to MarketAxess Holdings Inc. or BlackRock's investment strategy are mentioned in this beneficial ownership filing.

Risks

• This Schedule 13G filing focuses solely on beneficial ownership disclosure and does not detail specific risks related to MarketAxess Holdings Inc.'s operations or financial performance.

Future Outlook

This filing does not contain forward-looking statements or guidance from MarketAxess Holdings Inc. It is a disclosure of beneficial ownership by an institutional investor, reflecting a passive investment stance.

Management Comments

• "The securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11."

Industry Context

Schedule 13G filings are routine disclosures by large institutional investors like BlackRock, indicating passive ownership stakes below 5% (or between 5% and 20% for certain types of investors). This filing reflects BlackRock's ongoing investment strategy in the financial technology sector, specifically in electronic trading platforms like MarketAxess, which facilitate fixed-income trading.

Comparison to Industry Standards

• BlackRock's 4.2% stake is a standard passive investment for a large asset manager, falling below the 5% threshold that would typically trigger a more active Schedule 13D filing, which implies an intent to influence or control the issuer.
• Compared to other major institutional investors, BlackRock frequently holds significant, but passive, stakes across a broad portfolio of publicly traded companies, aligning with its role as a diversified asset manager.
• MarketAxess operates in a competitive landscape with other electronic trading platforms and traditional brokers. BlackRock's investment suggests a belief in MarketAxess's market position and growth potential within this sector.

Corporate Governance

Stakeholder Impact

• Shareholders of MarketAxess Holdings Inc.: Provides transparency on a significant institutional investor's passive stake, potentially reinforcing market confidence.
• BlackRock, Inc. Clients/Investors: Confirms BlackRock's continued investment in MarketAxess Holdings Inc. as part of its managed portfolios.

Next Steps

• BlackRock, Inc. will continue to monitor its investment in MarketAxess Holdings Inc.
• Further Schedule 13G amendments will be filed if there are significant changes in beneficial ownership (e.g., crossing 5% or 10% thresholds, or a change in intent from passive to active).

Key Dates

Recommendation

This filing is a routine disclosure of a passive ownership stake by BlackRock, Inc. in MarketAxess Holdings Inc. It does not contain new financial performance data, strategic updates, or other information that would fundamentally alter the investment thesis for MarketAxess. The 4.2% stake is below the 5% threshold for active reporting, indicating a continued passive investment. Therefore, a 'hold' recommendation is appropriate as there's no new information to warrant a change in existing positions based solely on this filing.

Keywords

BlackRock, MarketAxess Holdings Inc., MA, 13G, beneficial ownership, institutional investor, common stock, equity stake, financial services, trading platform