What Is the Rebalancing Mechanism?
When the price of the underlying asset fluctuates, the ETF’s actual leverage ratio also changes and may deviate from the product’s target leverage ratio.
The rebalancing mechanism, also known as position adjustment, refers to the fund manager adjusting the contract positions corresponding to the ETF based on market movements, so that the ETF’s actual leverage can be restored as closely as possible to the target leverage ratio.
Using Gate ETF products as an example, rebalancing is usually completed by adjusting the size of the contract positions corresponding to the ETF. After rebalancing, the system recalculates the ETF net value and corresponding positions, and uses the ETF net value and underlying contract index price at the time of this rebalancing as the new benchmark for subsequent calculations.
How Does the Rebalancing Mechanism Work?
Due to fluctuations in the underlying asset price, the actual leverage of the contract positions behind the ETF will deviate from the target leverage. Therefore, the fund manager needs to rebalance under specific conditions to maintain the product’s target leverage ratio.
The following example uses BTC3L for illustration.
Assume the current BTC price is 100 USDT, the BTC3L net value is 1 USDT, and a user buys 100 USDT worth of BTC3L.
Initial State
The fund manager uses 100 USDT as margin and establishes a 300 USDT BTC contract position in the derivatives market, making the actual leverage of BTC3L 3x.
| BTC Price | Net Value of User’s BTC3L Holdings | Corresponding BTC 3x Contract Position | Current Actual Leverage of BTC3L |
|---|---|---|---|
| 100 | 100 | 300 | 300 / 100 = 3x |
Underlying Asset Price Increases
If the BTC price rises by 5%, the corresponding 3x long ETF theoretically rises by approximately 15%, and the net value of the user’s BTC3L holdings becomes 115 USDT.
At this point, the value of the contract position also rises by 5% along with the BTC price, increasing from 300 USDT to 315 USDT.
| BTC Price | Net Value of User’s BTC3L Holdings | BTC 3x Contract Position | Current Actual Leverage of BTC3L |
|---|---|---|---|
| 105 | 115 | 315 | 315 / 115 = 2.74x |
As shown, although the target leverage of BTC3L is 3x, after the underlying price rises and the net value increases, the current actual leverage falls to approximately 2.74x, which is below the target leverage.
To restore the leverage to 3x, the fund manager needs to increase the contract position. For example, the manager may add a 30 USDT contract position, bringing the total contract position to 345 USDT.
| BTC Price | Net Value of User’s BTC3L Holdings | BTC 3x Contract Position | Current Actual Leverage of BTC3L |
|---|---|---|---|
| 105 | 115 | 345 | 345 / 115 = 3x |
Similarly, if the underlying asset price falls, the ETF’s actual leverage will also change. The system will adjust the corresponding contract positions according to the rebalancing rules, so that the actual leverage can be restored as closely as possible to the target leverage ratio.
Please note that ETF rebalancing adjusts positions based on market movements. Positions may be increased when the product is profitable and reduced when the product incurs losses. When users trade leveraged ETF products, they do not need to provide margin themselves; they can obtain the corresponding leveraged exposure simply by buying and selling ETF products.
Gate ETF Rebalancing Rules
Gate ETF rebalancing consists of scheduled rebalancing and unscheduled rebalancing.
After rebalancing is completed, the system restores the ETF’s actual leverage to the target leverage ratio of the corresponding product. Subsequent price-change judgments or actual leverage calculations will then be based on the new rebalancing benchmark.
1. Scheduled Rebalancing
The system conducts a scheduled rebalancing check once per day at 00:00 (UTC+8). Rebalancing will be triggered if either of the following conditions is met:
Condition 1: Actual Leverage Exceeds the Allowed Range
When the ETF’s actual leverage exceeds the leverage upper or lower limit of the corresponding product, the system will trigger rebalancing and restore the actual leverage to the target leverage ratio.
Condition 2: Underlying Contract Index Price Deviates by More Than 1%
Here, “price deviation exceeding 1%” does not refer to the intraday amplitude between the highest and lowest prices. Instead, it refers to the percentage change of the current underlying contract index price relative to the specified benchmark price.
The specific judgment method is as follows:
- If rebalancing has already occurred on the same day: the underlying contract index price at the time of the most recent rebalancing is used as the benchmark. The current price is compared with this benchmark price. If the deviation exceeds 1%, rebalancing is triggered.
- If no rebalancing has occurred on the same day: the 24-hour price change of the underlying contract index price is referenced. If the absolute value of the 24-hour change exceeds 1%, rebalancing is triggered.
If neither of the above conditions is met, scheduled rebalancing will not be performed.
2. Unscheduled Rebalancing
Unscheduled rebalancing is also known as real-time position adjustment. In addition to the daily scheduled check, the system calculates the ETF’s current actual leverage in real time whenever the underlying contract index price updates.
When the actual leverage reaches or exceeds the leverage upper or lower limit of the corresponding ETF type, the system immediately triggers unscheduled rebalancing and restores the actual leverage to the target leverage ratio.
Please note that the trigger condition for unscheduled rebalancing is unrelated to “price deviation exceeding 1%.” Price deviation exceeding 1% is one of the judgment conditions in the scheduled rebalancing check. Unscheduled rebalancing mainly determines whether the ETF’s current actual leverage has reached or exceeded the allowed range.
For example, a 3x long ETF has a target leverage of 3x and an upper leverage limit of 4.125x. If the underlying contract index price falls by approximately 12% from the price at the previous rebalancing, the ETF’s actual leverage may rise to approximately 4.125x, reaching the leverage upper limit. In this case, even if the daily scheduled check time of 00:00 has not yet arrived, the system will trigger unscheduled rebalancing and restore the actual leverage to the target leverage ratio.
After rebalancing is completed, the ETF net value and underlying contract index price at the time of this rebalancing will be used as the new benchmark for subsequent calculations.
3. Leverage Ranges for Different ETF Types
| ETF Type | Target Leverage | Lower Leverage Limit | Upper Leverage Limit | Approximate Price Change Triggering Lower Limit | Approximate Price Change Triggering Upper Limit |
|---|---|---|---|---|---|
| 3x Long ETF (3L) | 3x | 2.25 | 4.125 | Underlying rises by approx. 20% | Underlying falls by approx. 12% |
| 3x Short ETF (3S) | -3x | 1.5 | 5.25 | Underlying falls by approx. 20% | Underlying rises by approx. 12% |
| 5x Long ETF (5L) | 5x | 3.5 | 7 | Underlying rises by approx. 12% | Underlying falls by approx. 6.67% |
| 5x Short ETF (5S) | -5x | 3.5 | 7 | Underlying falls by approx. 6.67% | Underlying rises by approx. 5% |
Note: The price change in the table above refers to the cumulative change from the underlying contract index price at the time of the previous rebalancing to the current price. Whether rebalancing is actually triggered is subject to the ETF’s actual leverage calculated by the system in real time.
For example, if the underlying contract index price of a 3x long ETF falls by approximately 12% from the previous rebalancing price, the actual leverage will rise from 3x to approximately 4.125x, reaching the leverage upper limit and triggering unscheduled rebalancing.
4. Step-by-Step Rebalancing
In extreme market conditions, if the underlying contract index price experiences an excessively large single movement and directly crosses the price boundary corresponding to the leverage upper or lower limit, the system will not simply use the post-boundary price to calculate the net value in one step.
Instead, the system inserts a reasonable intermediate rebalancing price, first calculating a theoretical rebalancing at the boundary price that triggers the leverage limit, and then resetting the net value and price benchmark. It will then continue checking whether the remaining price interval still triggers rebalancing, until the price falls within a reasonable leverage range.
This step-by-step rebalancing mechanism helps prevent the ETF net value from being directly calculated as zero or becoming negative due to sharp single price movements, thereby improving the stability of ETF net value calculation and position adjustment in extreme market conditions.
Examples
Example 1: Rebalancing Has Already Occurred, Using the Previous Rebalancing Price as the Benchmark
Assume an ETF has already undergone one rebalancing during the day, when the underlying contract index price was 100 USDT.
Later, when the system conducts the scheduled rebalancing check, the current underlying contract index price is 101.2 USDT.
The price deviation is: (101.2 - 100) / 100 = 1.2%
Since the current price has deviated by more than 1% relative to the previous rebalancing price, scheduled rebalancing will be triggered.
Example 2: Intraday Movement Exceeded 1%, but Current Deviation Does Not Exceed 1%
Assume the underlying contract index price was 100 USDT at the time of the previous rebalancing.
After that, the underlying price once rose to 101.5 USDT, but fell back to 100.6 USDT at the time of the scheduled check.
The price deviation is: (100.6 - 100) / 100 = 0.6%
Although the intraday price movement once exceeded 1%, the current price deviation relative to the previous rebalancing price does not exceed 1% at the time of the scheduled check. If the actual leverage also has not exceeded the allowed range, rebalancing will not be triggered.
Example 3: No Rebalancing Has Occurred During the Day, Referencing the 24-Hour Price Change
Assume no rebalancing has occurred during the day. When the system conducts the scheduled check at 00:00 (UTC+8), it will reference the 24-hour price change of the underlying contract index price.
If the underlying asset’s 24-hour price change is +1.3%, it meets the condition that the absolute value of the price change exceeds 1%, and scheduled rebalancing will be triggered.
If the underlying asset’s 24-hour price change is +0.8%, and the actual leverage has not exceeded the allowed range, rebalancing will not be triggered.
Example 4: Rebalancing Is Triggered When Leverage Reaches the Upper or Lower Limit
Assume a 3x long ETF has a target leverage of 3x and an upper leverage limit of 4.125x.
If the underlying contract index price falls by approximately 12% from the previous rebalancing price, the ETF’s actual leverage may rise to approximately 4.125x, reaching the leverage upper limit.
In this case, regardless of whether the daily scheduled check time has arrived, and regardless of whether price deviation is judged under the 1% condition, the system will trigger unscheduled rebalancing based on the actual leverage reaching the upper limit, and restore the actual leverage to the target leverage ratio.
Disclaimer
The content provided herein is for reference and educational purposes only and does not constitute any financial, investment, trading, or legal advice, nor does it constitute an offer or solicitation to buy or sell any digital assets. Gate makes no express or implied representations or warranties regarding the accuracy, completeness, or timeliness of the information contained herein. Product features, interfaces, rules, and fee structures may be updated or adjusted at any time. Please refer to the latest announcements and the actual information displayed on the Gate platform for the most accurate details.
Digital asset investments involve significant risk, and prices may fluctuate substantially. You may lose the entire amount of your investment. Please make decisions cautiously based on your own financial situation and risk tolerance after fully understanding the associated risks. If necessary, you are advised to consult an independent professional financial or legal advisor.
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