Portfolio Margining: Modernizing Margin Rules for Modern Markets

Financial markets have changed dramatically over the past two decades. Investors increasingly manage risk through portfolios that combine securities, options, futures, swaps, and other derivatives. More recently, digital asset products have become part of this broader ecosystem.

Yet regulatory frameworks often continue to treat these positions separately, even when they are designed to offset one another and reduce overall risk.

That is why SIFMA and SIFMA’s Asset Management Group recently urged the Securities and Exchange Commission (SEC) and Commodity Futures Trading Commission (CFTC) to continue advancing portfolio margining and removing barriers that prevent margin requirements from reflecting the true economic risk of a portfolio.

Key Takeaways

Portfolio margining helps ensure margin requirements reflect actual risk rather than regulatory silos.

• It allows economically related positions to be evaluated together, creating a more accurate measure of portfolio risk.
• Better risk measurement can improve market resilience, reduce unnecessary liquidity demands, and support effective hedging without compromising customer protections.
• Modernizing portfolio margining rules is increasingly important as markets become more interconnected across securities, derivatives, and digital asset products.
• SIFMA is asking the SEC and CFTC to remove regulatory obstacles that prevent recognition of legitimate risk offsets and to establish a clear framework for future portfolio margining initiatives.

What Is Portfolio Margining?

Portfolio margining is a risk-based approach to calculating margin requirements.

Rather than evaluating each position independently, portfolio margining considers how positions interact within a broader portfolio. When positions offset one another, margin requirements can be calibrated to the actual risk of the portfolio rather than the risk of each position viewed in isolation.

Simply put, portfolio margining recognizes economic reality. If a hedge reduces overall exposure, the margin framework should account for that reduction in risk.

Why It Matters

Portfolio margining is often viewed only through the lens of collateral efficiency. But its most important benefit is better risk measurement.

When economically related positions are treated separately, firms and customers may be required to post margin that exceeds the actual risk of their portfolios. This can tie up liquidity, increase operational complexity, and discourage efficient risk-management strategies.

During periods of market stress, those effects become even more significant. Duplicative margin requirements can increase demand for cash and collateral across the financial system, potentially amplifying liquidity pressures without providing a corresponding improvement in safety or stability.

By recognizing genuine offsets while maintaining robust safeguards, portfolio margining can support both efficient markets and financial resilience.

Good Policy for Market Stability

Well-designed portfolio margining is not about weakening standards or reducing protections.

To the contrary, margin requirements should remain appropriately risk-sensitive and continue to support customer protection, segregation requirements, and prudent risk management. The objective is to ensure that regulatory requirements are aligned with actual portfolio risk.

A framework that measures risk more accurately can improve market functioning, facilitate effective hedging, reduce operational burdens, and provide a clearer picture of risk concentrations across the financial system.

In short, smarter risk measurement supports stronger markets.

SIFMA’s Recommendations

SIFMA’s response identifies several actions that would help modernize today’s framework.

Enable Margining of Economically Related Positions

Regulators should facilitate portfolio margining for economically related securities and derivatives positions, even when those positions fall under different regulatory regimes.

Market participants increasingly manage risk across products. Rules should allow margin methodologies to recognize those relationships where appropriate.

Eliminate Regulatory Inconsistencies

Differences in margin, collateral, segregation, and documentation requirements often create practical barriers to portfolio margining.

Greater coordination between regulators would reduce unnecessary complexity while preserving substantive customer protections and risk-management standards.

Establish a Clear Path Forward

The SEC and CFTC should create a transparent and coordinated process for reviewing future portfolio margining proposals.

Providing regulatory clarity would support responsible innovation while ensuring that safeguards keep pace with evolving market structures and products.

Preparing for the Future of Digital Assets

The need for portfolio margining will become even more important as digital asset markets continue to mature.

Investors increasingly gain exposure to digital assets through multiple products, including spot holdings, exchange-traded products, futures, options, and swaps. These products often reference the same underlying asset and may serve related investment or hedging purposes.

Yet differing regulatory classifications can prevent firms from recognizing the risk-reducing effects of related positions. As a result, margin requirements may not accurately reflect a participant’s overall exposure.

Applying consistent risk-based principles across securities, derivatives, and digital asset products can help improve liquidity, enhance risk management, and support the continued development of U.S. digital asset markets.

As policymakers consider the next generation of market infrastructure, portfolio margining should be viewed as a foundational tool for ensuring that equivalent economic risks receive equivalent regulatory treatment.

Conclusion

Today’s markets are interconnected, but margin frameworks often remain fragmented.

Portfolio margining offers a practical way to align margin requirements with actual portfolio risk, improve market efficiency, support liquidity, and strengthen financial resilience while maintaining investor protections.

As markets continue to evolve, modernization of portfolio margining rules will help ensure that regulation keeps pace with how investors manage risk in the real world, across traditional products and the emerging digital asset ecosystem.