Unified Account FAQ: Comprehensive Guide to Borrowing, Interest, and Risk Management

Table of Contents

1. How Does a Unified Account Borrow Coins?
2. When Are Interest Calculations and Deductions Applied?
3. How Is Interest Deducted in a Unified Account?
4. How Are Liabilities Repaid in a Unified Account?
5. When Do Liabilities Qualify for Interest-Free Limits?
6. Why Does Borrowable Quantity Remain Unchanged Despite Sufficient Margin?
7. How to Use Unified Accounts for Futures-Spot Arbitrage
8. How to Use Unified Accounts for Funding Rate Arbitrage
9. When Are Coin Discount Rates Used in Margin Calculations?
10. Does the Unified Account Perform Isolated Maintenance for Specific Services?
11. Logic and Order of Passive ADL for Profitable Positions
12. Supported and Unsupported Features in Portfolio Margin Accounts
13. Why Might an Exchange Open Positions for Users in Portfolio Margin Mode?
14. How Does Portfolio Margin Account – Derivatives Hedging Mode Mitigate Risk?
15. How Does Portfolio Margin Account – Spot Hedging Mode Mitigate Risk?

1. How Does a Unified Account Borrow Coins?

• Automatic Borrowing: Unified accounts exclusively use auto-borrowing; manual borrowing is unsupported.

• Scenarios:

  • Isolated/Cross-margin leverage and spot/contract positions trigger auto-borrowing upon opening.
  • Cross-currency margin mode borrows automatically if trade volume exceeds available balance (when enabled).

👉 Learn more about auto-borrowing mechanics

2. When Are Interest Calculations and Deductions Applied?

• Interest Calculation: Hourly at the top of each hour (no immediate balance impact).
• Interest Deduction: Hourly, increasing liabilities post-deduction.

3. How Is Interest Deducted in a Unified Account?

• Isolated/Cross-margin: Interest is added to position liabilities.
• Cross-currency Liabilities: Deducted from the account’s liability balance.

4. How Are Liabilities Repaid in a Unified Account?

• Isolated/Cross-margin: Repaid via closing positions (interest cleared first).
• Cross-currency: Repaid by depositing/buying the owed currency.

5. When Do Liabilities Qualify for Interest-Free Limits?

• Only unrealized losses from contract positions in cross-currency accounts qualify.
• Exclusions: Leverage borrowing or realized losses do not qualify.

6. Why Does Borrowable Quantity Remain Unchanged Despite Sufficient Margin?

• Solutions:

  1. Reduce leverage (lower multiples increase borrowing limits).
  2. Check account tier limits or platform lending caps.

7. How to Use Unified Accounts for Futures-Spot Arbitrage

• Positive Premium: Long spot + short futures.
• Negative Premium: Short spot + long futures.
• Advantage: Unified accounts offset risks across positions.

8. How to Use Unified Accounts for Funding Rate Arbitrage

• Positive Funding Rate: Long spot + short perpetual.
• Negative Funding Rate: Short spot + long perpetual.
• Risk Mitigation: Cross-position盈亏互抵 minimizes liquidation risks.

9. When Are Coin Discount Rates Used in Margin Calculations?

• Applied in cross-currency accounts under tiered折算率 rules.
• Single-currency accounts (spot/contract) exclude折扣率.

10. Does the Unified Account Perform Isolated Maintenance for Specific Services?

No. All services undergo simultaneous maintenance.

11. Logic and Order of Passive ADL for Profitable Positions

ADL prioritizes counterparties based on account/position risk and yield.

👉 Explore ADL sequencing details

12. Supported and Unsupported Features in Portfolio Margin Accounts

| Feature | Support Status |
|---------------------------|--------------------------|
| Cross-currency Mode | ✅ Supported |
| Leverage Adjustment | ❌ (Except spot margin) |
| Full/Isolated Margin | ✅ Supported |

13. Why Might an Exchange Open Positions for Users in Portfolio Margin Mode?

Exchanges may execute对冲 orders during liquidations to optimize portfolio risk.

14. Portfolio Margin – Derivatives Hedging Mode

• Stress-tests derivatives under risk scenarios to calculate保证金.

• Example:

  • BTC跨期套利: 23M USD (Unified) vs. 4M USD (Portfolio).

15. Portfolio Margin – Spot Hedging Mode

• Includes现货/杠杆 in risk units (coin-margined/USDT-margined) to reduce保证金 requirements.

FAQs

Q1: Can I manually borrow coins in a unified account?
No, borrowing is fully automated.

Q2: How often is interest compounded?
Hourly, with deductions applied simultaneously.

Q3: What happens if I don’t repay cross-currency liabilities?
Interest accrues until the owed currency is deposited.

Q4: Why does my borrow limit not increase with higher margin?
Leverage tiers or platform caps may restrict borrowing.

Q5: How does portfolio margin reduce保证金 for对冲 positions?
By offsetting risks across correlated assets during stress tests.

Q6: Is maintenance ever partial for unified accounts?
No, all services are maintained concurrently.

**Keywords**: Unified Account, Borrowing Mechanics, Interest Calculation, Risk Hedging, Portfolio Margin, Arbitrage Strategies, ADL Logic, Cross-Currency Liabilities  

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