How to calculate the funding rate of Upbit contracts? How often is it updated?

Upbit's funding rate, updated every 8 hours at 00:00, 08:00, and 16:00 UTC, is crucial for traders to align perpetual futures with spot prices.

May 19, 2025 at 12:35 pm

Understanding the funding rate of Upbit contracts and its update frequency is crucial for traders who engage in perpetual futures trading. The funding rate is a mechanism designed to ensure that the price of a perpetual futures contract remains closely aligned with the price of the underlying asset. In this article, we will explore how to calculate the funding rate of Upbit contracts and how often it is updated.

What is the Funding Rate?

The funding rate is a periodic payment made between traders based on the difference between the perpetual contract's market price and the spot price of the underlying asset. If the contract's price is higher than the spot price, long position holders pay short position holders. Conversely, if the contract's price is lower than the spot price, short position holders pay long position holders. This mechanism helps to minimize the divergence between the futures price and the spot price.

How to Calculate the Funding Rate on Upbit

Calculating the funding rate on Upbit involves several steps. Here’s a detailed guide on how to do it:

• Determine the Funding Interval: Upbit updates the funding rate every eight hours. The funding intervals are at 00:00 UTC, 08:00 UTC, and 16:00 UTC.

• Calculate the Interest Rate: The interest rate, often referred to as the premium index, is calculated as a percentage. Upbit uses the following formula to calculate the interest rate:

  Interest Rate = (Max[0, Impact Bid Price - Impact Ask Price] - Min[0, Impact Bid Price - Impact Ask Price]) / 2

  Here, the Impact Bid Price and Impact Ask Price are derived from the order book data at specific times before the funding rate is calculated.

• Calculate the Funding Rate: The funding rate is then calculated using the interest rate and a clamp function to ensure it remains within a certain range. The formula is:

  Funding Rate = Clamp(Interest Rate + clamp(Spot Index Price - Mark Price, -0.35%  Spot Index Price, 0.35%  Spot Index Price) / Spot Index Price, -0.75%  8 hours, 0.75%  8 hours)

  Here, the Spot Index Price is the average price of the underlying asset over a certain period, and the Mark Price is the fair price of the perpetual contract.

Example of Funding Rate Calculation

To better understand how to calculate the funding rate on Upbit, let's consider an example:

• Suppose the Impact Bid Price is $10,000 and the Impact Ask Price is $9,990.

• The Interest Rate would be calculated as:

  Interest Rate = (Max[0, 10,000 - 9,990] - Min[0, 10,000 - 9,990]) / 2 = (10 - 0) / 2 = 5%

• Assume the Spot Index Price is $10,000 and the Mark Price is $10,010.

• The funding rate calculation would be:

  Funding Rate = Clamp(5% + clamp(10,000 - 10,010, -0.35%  10,000, 0.35%  10,000) / 10,000, -0.75%  8 hours, 0.75%  8 hours)

  Funding Rate = Clamp(5% + clamp(-10, -35, 35) / 10,000, -0.75%  8 hours, 0.75%  8 hours)

  Funding Rate = Clamp(5% + (-10 / 10,000), -0.75%  8 hours, 0.75%  8 hours)

  Funding Rate = Clamp(5% - 0.1%, -0.75%  8 hours, 0.75%  8 hours)

  Funding Rate = Clamp(4.9%, -0.75%  8 hours, 0.75%  8 hours)

  Funding Rate = Clamp(4.9%, -0.06%, 0.06%)

  Funding Rate = 0.06%

How Often is the Funding Rate Updated?

The funding rate on Upbit is updated every eight hours. This means that there are three funding rate updates per day, occurring at 00:00 UTC, 08:00 UTC, and 16:00 UTC. Traders need to be aware of these times as they can impact their trading strategies and potential profits or losses.

Impact of Funding Rate on Trading Strategies

The funding rate can significantly impact trading strategies on Upbit. Traders need to consider the following aspects:

• Long vs. Short Positions: If the funding rate is positive, long position holders will pay short position holders. This can be costly for those holding long positions over time. Conversely, if the funding rate is negative, short position holders will pay long position holders.

• Arbitrage Opportunities: Traders can take advantage of discrepancies between the funding rate and the spot price to engage in arbitrage strategies. For example, if the funding rate is significantly different from what is expected based on the spot price, traders might enter positions to exploit this difference.

• Risk Management: Understanding the funding rate and its potential impact on positions is crucial for effective risk management. Traders should calculate the potential costs of holding positions over multiple funding intervals and adjust their strategies accordingly.

Tools and Resources for Monitoring Funding Rates

To effectively monitor and calculate the funding rate on Upbit, traders can use the following tools and resources:

• Upbit API: Upbit provides an API that allows traders to access real-time data on funding rates, spot prices, and other relevant information. By integrating this data into trading algorithms, traders can automate the calculation and monitoring of funding rates.

• Trading Platforms: Many trading platforms and software solutions offer built-in tools for monitoring funding rates. These platforms often provide visual representations and alerts to help traders stay informed.

• Third-Party Services: There are numerous third-party services and websites that aggregate and display funding rate data from various exchanges, including Upbit. These services can be useful for comparing funding rates across different platforms and identifying potential arbitrage opportunities.

Frequently Asked Questions

Q: Can the funding rate on Upbit be negative?
A: Yes, the funding rate on Upbit can be negative. If the contract's price is lower than the spot price, short position holders will pay long position holders, resulting in a negative funding rate.

Q: How does the funding rate affect my open positions?
A: The funding rate directly impacts the profitability of your open positions. If you hold a long position and the funding rate is positive, you will pay a fee to short position holders. Conversely, if you hold a short position and the funding rate is negative, you will pay a fee to long position holders.

Q: Is it possible to predict the funding rate?
A: While it's challenging to predict the funding rate with certainty, traders can analyze historical data and market conditions to make educated guesses. Factors such as market volatility, liquidity, and the difference between the contract and spot prices can influence the funding rate.

Q: How can I minimize the impact of funding rates on my trading?
A: To minimize the impact of funding rates, traders can consider the following strategies: closing positions before high funding rate intervals, using hedging strategies to offset potential costs, and carefully managing position sizes to limit exposure to funding rate fluctuations.