SEC Adopts Rule Changes to Eliminate Credit Rating References and Proposes US Equity Trading Overhaul

The SEC has taken distinct regulatory actions regarding credit ratings and equity market structure [1, 2]. First, the agency adopted rule changes specifically targeted at eliminating references to credit ratings from existing exceptions [1]. Second, the SEC proposed major changes to US equity trading alongside a sweeping overhaul of credit rating agency accreditation rules [2]. These regulatory updates represent a coordinated effort to modify how credit ratings interact with regulatory compliance and how US equity markets operate [1, 2].

Credit ratings have historically served as embedded benchmarks within various regulatory exceptions and compliance frameworks. By eliminating references to these ratings from existing exceptions, the SEC is altering the compliance mechanisms that financial institutions rely upon [1]. Furthermore, the proposed overhaul of US equity trading and credit rating agency accreditation rules signals a broader initiative by regulators to modernize and restructure foundational elements of the US financial system [2]. These changes touch upon both secondary market trading dynamics and the accreditation standards governing credit rating entities [2].

For market participants, these regulatory shifts introduce new operational considerations. The removal of credit rating references from exceptions requires entities to reassess how they qualify for certain regulatory treatments [1]. Meanwhile, the proposed equity trading overhaul and accreditation rule changes could introduce structural adjustments to market access, compliance costs, and the operational workflows of institutions engaging with US equity markets and rating agencies [2].

Regulatory transitions inherently carry compliance and operational risks. As the SEC eliminates credit rating references from existing exceptions, affected institutions face the challenge of adapting internal risk management systems to align with the new regulatory standards [1]. Additionally, the proposed overhaul of US equity trading and accreditation rules introduces regulatory uncertainty, as market participants must navigate potential compliance adjustments and evolving supervisory expectations [2].

• The SEC adopted rule changes that eliminate references to credit ratings from existing exceptions [1].
• The SEC proposed major changes targeting an overhaul of US equity trading [2].
• Reforms also target credit rating agency accreditation rules [2].
• Market participants face structural and compliance adjustments as these rules are implemented and proposed changes are considered [1, 2].

• Credit rating agencies
• US equity trading exchanges and market participants

### What specific rule changes did the SEC adopt regarding credit ratings? An: The SEC adopted rule changes to eliminate references to credit ratings from existing exceptions [1].

### What broader market areas are affected by the SEC's recent proposals? An: The SEC has proposed major changes to US equity trading alongside a sweeping overhaul of credit rating agency accreditation rules [2].

### Are these regulatory updates limited only to credit ratings? An: No, while the adopted rules focus on eliminating credit rating references from exceptions, the SEC has also proposed a major overhaul affecting US equity trading [1, 2].