SEC Adopts Rule Changes and Pushes Major Reforms to Credit Rating Agency Accreditation and US Equity Trading

The Securities and Exchange Commission (SEC) has enacted regulatory adjustments by adopting rule changes designed to eliminate references to credit ratings from existing exceptions [1]. Beyond these adopted changes, the SEC is actively pushing for broader reforms [1, 2]. These initiatives include major proposed changes targeting US equity trading alongside a sweeping overhaul of credit rating agency accreditation rules [2].

Credit ratings and accreditation rules form a structural foundation for how financial institutions, market participants, and capital markets evaluate risk and execute trades. By systematically removing references to credit ratings from existing exceptions and proposing structural overhauls to accreditation rules and equity trading, the SEC is shifting the regulatory framework governing market gatekeepers and trading execution [1, 2]. These actions highlight ongoing federal efforts to reshape the standards and oversight mechanisms governing credit assessment bodies and public equity markets [1, 2].

Investors may experience shifts in compliance obligations, risk assessment protocols, and market microstructure as these regulatory changes take effect. With the elimination of credit rating references in exceptions and proposed overhauls to accreditation and trading rules, market participants must navigate a changing regulatory landscape that could alter how creditworthiness is factored into regulatory exceptions and how equity trading operates [1, 2]. Increased compliance scrutiny and structural adjustments across credit rating agencies and trading venues could influence operational workflows for financial institutions.

Regulatory shifts of this scale introduce potential transition uncertainties for market participants relying on established credit rating exceptions and equity trading frameworks. Changes to accreditation rules and trading overhauls may create operational friction, compliance challenges, or unforeseen adjustments in market liquidity and risk management practices as entities adapt to the SEC's updated requirements [1, 2].

• The SEC has adopted specific rule changes removing credit rating references from existing exceptions [1].
• The commission is advancing major proposals to overhaul US credit rating agency accreditation rules [1, 2].
• Broad proposals targeting a ping overhaul of US equity trading are also under consideration [2].
• The overarching regulatory environment for market intermediaries and trading operations faces structural evolution [1, 2].

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

### What additional reforms is the SEC proposing for credit rating agencies? The SEC is pushing for a major overhaul of US credit rating agency accreditation rules [2].

### Are there any proposed changes affecting US equity trading? Yes, the SEC has proposed major changes to US equity trading, including an overhaul of US trading systems [2].