Portfolio Margin Mode: Cross Margin Trading (Risk Unit Merge)

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Portfolio Margin Mode revolutionizes the way traders manage their positions across spot, margin, perpetual futures, term futures, and options. By unifying all these instruments under a single account with a risk-based margin calculation model, this advanced trading mode enhances capital efficiency and reduces overall margin requirements.

Unlike traditional isolated margin systems, Portfolio Margin Mode evaluates your entire portfolio holistically. It considers correlations and hedging effects between different positions—such as holding spot ETH while shorting ETH futures—allowing for more intelligent use of capital. This approach is ideal for sophisticated traders who employ diversified strategies across multiple markets.

How Portfolio Margin Mode Works

At the core of Portfolio Margin Mode is Risk Unit Consolidation. Instruments with the same underlying asset—like perpetual futures, term futures, and options on ETH—are grouped into a single risk unit. This consolidation enables the system to recognize offsetting positions and reduce required margin accordingly.

👉 Discover how Portfolio Margin Mode can optimize your trading strategy and unlock greater flexibility.

For example, if you hold long spot ETH and short ETH futures, the system identifies this as a partially hedged position. As a result, your margin requirement will be lower than if these were treated separately.

Automatic Spot Inclusion in Risk Units

One of the key innovations in the upgraded Portfolio Margin Mode is automatic spot inclusion. Spot holdings are automatically incorporated into the relevant risk unit for margin calculation. This means:

This integration significantly improves capital utilization, especially for traders running spot-futures arbitrage or delta-neutral strategies.

Core Components of Portfolio Margin Calculation

The total margin requirement in Portfolio Margin Mode consists of two main components: Derivatives Margin and Borrowing Margin.

Derivatives Maintenance Margin (MMR)

The MMR is calculated per risk unit using a comprehensive stress-testing model that simulates various market scenarios. These include:

Each scenario produces a theoretical loss value. The highest loss across all scenarios determines the MMR for that risk unit.

Minimum Charge Adjustment (MR7)

To ensure sufficient coverage for liquidation costs, transaction fees, and slippage, the system applies an adjusted minimum charge. This acts as a safety buffer and scales with portfolio size through tiered multipliers:

TierRaw Minimum Fee Range (USD)Multiplier
1$0 – $250,0001x
2$250,000 – $500,0002x
3$500,000 – $1M4x
4$1M – $2M6x
5$2M – $3M8x
6$3M – $4M10x
7$4M+12x

This tiered structure ensures larger portfolios maintain proportionally higher buffers against extreme events.

Borrowing Margin and Potential Loan Optimization

Borrowing margin accounts for potential liabilities from spot margin trading, option buyer debt, and unrealized PnL.

There are two modes available:

After Potential Loan Optimization:

A potential loan is triggered when available equity in a given currency isn't enough to cover:

👉 Learn how auto-borrow functionality can expand your trading opportunities without increasing upfront capital.

How to Qualify for Portfolio Margin Mode

To access Portfolio Margin Mode, you must meet the following criteria:

Once enabled, you gain access to powerful tools like the Position Builder and APIs, which allow you to simulate new trades and preview their impact on your margin requirements before execution.

Liquidation Process in Portfolio Margin Mode

Liquidation occurs when your margin ratio falls below 100%. A warning is issued when it drops below 300%, giving you time to act.

The liquidation process follows a sequential, non-reversible protocol designed to restore safety (margin ratio > 110%) with minimal disruption:

Step 1: Dynamic Delta Hedging for Stablecoins (DDH1)

If stablecoin depegging risk (MR9) is dominant, the system adjusts perpetual or term futures positions to hedge against devaluation.

Step 2: General Dynamic Delta Hedging (DDH2)

When spot shock risk (MR1) is highest—e.g., BTC drops 15%—the system uses options and futures to reduce overall delta exposure.

Step 3: Basis Risk Mitigation

If basis risk (MR4) is the largest threat, the system liquidates futures contracts with different expiries simultaneously to minimize basis divergence.

Step 4: General Position Reduction

Positions contributing most to margin pressure are reduced incrementally until the account returns to a safe state or all positions are closed.

Key Benefits of Portfolio Margin Mode

Frequently Asked Questions (FAQ)

What assets are eligible for Portfolio Margin Mode?

Most major cryptocurrencies including BTC, ETH, SOL, BNB, XRP, ADA, and others are supported. The exact list may vary based on platform updates and market conditions.

Can I switch back to isolated margin mode?

Yes. Users can switch between margin modes at any time, though certain restrictions may apply during active liquidations or high-risk states.

Does Portfolio Margin Mode support cross-currency hedging?

No. Hedging benefits are recognized only within the same risk unit (same underlying asset). Cross-asset hedging (e.g., BTC vs ETH) is not factored into margin calculations.

How often are risk parameters updated?

Risk models—including price shocks, volatility assumptions, and discount rates—are reviewed regularly and adjusted according to market conditions. Changes are communicated in advance where possible.

Is there a fee to use Portfolio Margin Mode?

There are no additional fees for using Portfolio Margin Mode. However, standard trading fees, borrowing interest, and liquidation penalties still apply.

Can I use API to manage my portfolio margin account?

Yes. Full API support is available for checking margin ratios, simulating trades, placing orders, and managing risk settings programmatically.

👉 Start optimizing your margin efficiency today—see how Portfolio Margin Mode adapts to your strategy.

Final Thoughts

Portfolio Margin Mode represents a significant leap forward in digital asset trading infrastructure. By merging spot and derivatives into a unified risk framework, it empowers experienced traders with greater flexibility, precision, and control.

Whether you're executing complex options strategies, running delta-neutral arbitrage, or managing large multi-position portfolios, this mode helps you do so with improved capital efficiency and smarter risk management.

As markets evolve and trading strategies grow more sophisticated, tools like Portfolio Margin Mode become essential for staying competitive—and profitable—in the fast-paced world of crypto finance.

Core Keywords: Portfolio Margin Mode, Cross Margin Trading, Risk Unit Merge, Derivatives Margin, Capital Efficiency, Liquidation Process, Hedging Strategies, Margin Requirement Calculation