Margin Modes and Calculations

Understanding Collateral Value Ratios in Unified Trading Account

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Last updated on 2025-09-18 17:04:44
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In a Unified Trading Account, all supported collateral assets are valued in USD. This USD value serves as the margin balance, which can be used for trading. Due to varying liquidity conditions of each crypto asset, these assets may be valued at a discounted rate using a "Collateral Value Ratio." This ratio determines the percentage at which an asset is recognized as collateral.

 

 

 

 

How Collateral Value Ratio Affect Margin Balance 

In Cross Margin mode, the Margin Balance is calculated as:

Margin Balance = Wallet Balance + Perp & Future Unrealized Profit/Loss (UPL)

 

If there are no positions or orders in your account, the margin balance is calculated as:

Total Wallet Balance (in USD) =  Sum (Asset 1 × USD Index Price × Collateral Value Ratio + Asset 2 × USD Index Price × Collateral Value Ratio + … + Asset N × USD Index Price × Collateral Value Ratio)

 

Whereas,

USD Index Price = USDT Perpetual Index Price x USDT Conversion Rate

USDT Conversion Rate = BTCUSD Index Price / BTCUSDT Index Price

 

 

Notes:

— If there is no USDT Perpetual Index Price for a particular asset, the Last Traded Price on Bybit Spot Market will be used. For example, the USD Index Price for ETH will be ETHUSDT Index Price × USDT Conversion Rate.

— The Collateral Value Ratio only applies to assets with a positive balance. For assets with a negative balance default to a 100% collateral value ratio. 

— Traders can customize which assets to be served as collateral. For more information, please refer here.

 

 

Example Calculation 

Assume the tiered value rates of BTC and USDT are shown as follows:

 

Coins

Tier(Quantity)

Collateral Value Ratio

BTC

0 - 10

0.98

BTC

>10 - 20

0.95

BTC

>20 - 30

0.9

BTC

>30 - 40 

0.85

BTC

>40 - 50 

0.8

BTC

>50

0

USDT

>0

1

 

Trader A's Unified Trading Account has the following assets:

Coin

Wallet Balance

Unrealized PnL

Total Assets

Index Price

Total Margin Balance

BTC

60

20

80

50,000

(10 x 0.98 + 10 x 0.95 + 10 x 0.9 + 10 x 0.85 + 10 x  0.8 ) x 50,000 = 2,240,000

USDT

500

-10,000

-9500

1

-9500 x 1 = -9,500 

(Ratio for negative asset equal to 1)

 

 

Total margin balance = 2,240,000-9,500 ≈ 2,230,500 USD

 

Therefore, the total amount available as a margin for this account is approximately 2,230,500 USD.

 

 

 

 

 

How to View The Collateral Value Ratio

To view the collateral value ratio for each coin under Unified Trading Account, please go to the Application icon on the upper left corner and select Bybit Market Overview.

 

Click on Lending and Borrowings Margin Trading-UTA → Margin Specification and you can see the collateral value ratio for each coin. 

 
Note: 
Bybit will review and update the collateral value ratio periodically based on market conditions.
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