What is the Ethereum Flexible Leverage Index?

Last Updated : 23 Jul, 2025

Ethereum Flexible Leverage Index makes leverage effortless and enables market participants to take on leverage while minimizing the transaction costs and associated risks while maintaining the collateralized debt. This article focuses on discussing the Ethereum Flexible Leverage Index.

What is the Ethereum Flexible Leverage Index (ETH2x-FLI)?

The Ethereum Flexible Leverage Index (ETH2x-FLI) is developed by Index Coop. FLI is a token that allows traders to gain leveraged exposure to Ethereum (ETH) in a flexible and automated way.

  1. This index reduces the transaction costs and risks associated with maintaining collateralized debt.
  2. ETH2x-FLI is a new and innovative way for investors to gain exposure to Ethereum while minimizing their risk.
  3. It is a fully decentralized investment tool, meaning that investors have full control over their investments and can easily buy and sell the index without the need for a middleman.

Ethereum Flexible Leverage Index (ETH2x-FLI) tracks only the price of Ethereum (ETH) and underlying tokens such as cETH & USDC provide traders with leveraged exposure to ETH.

Objectives of the Ethereum Leverage Index

The Ethereum Flexible Leverage Index (FLI) is built using a smart contract that uses data from Oracle to monitor the price of ETH and calculate the leverage ratio. The ETH2x-FLI index uses a flexible leverage strategy, meaning it automatically adjusts its leverage based on market volatility. Here are the primary objectives:

  1. Amplify Returns: The main objective is to provide amplified returns relative to the performance of Ethereum. If Ethereum increases in value by 1% in a day, the leveraged index should ideally increase by 2% and vice versa for declines.
  2. Dynamic Exposure: It aims to offer dynamic leverage by adjusting its exposure based on market conditions. This helps to manage risks associated with maintaining a fixed leverage ratio.
  3. Enhanced Trading Opportunities: The index creates opportunities for the traders by providing leverage exposure.
  4. Risk Management: The index is designed with mechanisms to manage and mitigate risks associated with high leverage.
  5. Adapt to Market Conditions: The index aims to adapt to changing market conditions by adjusting its leverage dynamically.

Initial Parameters for Ethereum Leverage Index

Here are the key initial parameters:

  1. Underlying Asset: The primary asset that the index tracks is Ethereum (ETH).
  2. Target Leverage Ratio: This defines the multiple of Ethereum's daily return that the index aims to achieve. Common leverage ratios are 2x or 3x.
  3. DeFi Lending Protocol: It is a type of blockchain-based application that allows users to lend and borrow cryptocurrencies without relying on traditional financial intermediaries like banks. In this case, it is Compound v2.
  4. Maximum Leverage Ratio: It represents the highest level of leverage that the index can achieve. In this case, the index is designed to provide up to 2.3 times the daily return of Ethereum.
  5. Minimum Leverage Ratio: It is the lowest level of leverage that the index can provide. With a minimum ratio of 1.7, the index will offer at least 1.7 times the daily return of Ethereum.
  6. Recentering Speed: It refers to the rate at which the index adjusts its leverage ratio to maintain the target leverage. In this context, a recentering speed of 5% means that the index will adjust its leverage by up to 5% of its current value to correct deviations from the target leverage.

Key Terminology

  1. Borrow Rate: The borrowing rate is the cost of the ETH asset and borrowing it under the DeFi Lending Protocol over the latest epoch.
  2. Epoch Length: Epoch Length is the time between rebalancing which is the cost to borrow the asset under the DeFi Lending Protocol
  3. Target Leverage Ratio (TLR): Target Leverage Ratio is the long-term target for the ratio between the value of assets held by the index and the value of the debt it holds.
  4. Current Leverage Ratio (CLR): The Current Leverage Ratio is calculated by dividing the index's current asset value by the index's current debt value.
  5. Maximum Leverage Ratio (MAXLR): MAXLR is the ETH2x-FLI's highest leverage ratio. The index will be the highest after a rebalance.
  6. Re-centering Speed (RS): To return to the Target Leverage Ratio, the Re-centering Speed is the rate at which the Current Leverage Ratio is adjusted each period. It occurs when the index is not adjusted back to either the Maximum Leverage Ratio or the Minimum Leverage Ratio.

Formula for Index Price

The index price represents the current value of the leveraged index.

FLIt = FLIt-1 * (1 + ((Pricet/Pricet-1)–1) * CLRt-1 — (BorrowRatet * (CLRt-1 -1)/CLRt-1))

Here,

FLIt : The price of the leveraged index at time t.

FLIt-1 : The price of the leveraged index at the previous time period (t-1).

Pricet : The price of the underlying asset (e.g., Ethereum) at time t.

Pricet-1 : The price of the underlying asset at the previous time period (t-1).

CLRt-1 : The leverage ratio at the previous time period (t-1).

BorrowRatet : The borrowing rate at time t. This is the cost of borrowing funds used to maintain the leverage.

Formula for Current Lever Ratio for Next Epoch

The formula for the current leverage ratio for the next epoch adjusts the leverage ratio based on recent changes and target leverage while staying within the limits.

CLRt+1 = max(MINLR, min(MAXLR, CLRt * (1 – RS) + TLR * RS))

Here,

CLRt+1 : The leverage ratio for the next epoch.

CLRt : The current leverage ratio at time t.

RS (Recentering Speed): The recentering speed, a parameter that determines how quickly the leverage ratio is adjusted towards the target leverage ratio (TLR). This value is between 0 and 1.

TLR (Target Leverage Ratio): The target leverage ratio that the protocol aims to achieve.

MINLR (Minimum Leverage Ratio): The minimum allowable leverage ratio. The leverage ratio cannot fall below this value.

MAXLR (Maximum Leverage Ratio): The maximum allowable leverage ratio. The leverage ratio cannot exceed this value.

Benefits of Ethereum Leverage Index

Here are some benefits of Ethereum Leverage Index:

Below are the benefits of the Ethereum Leverage Index:

  1. Flexibility: The Flexible Leverage Index (FLI) provides a flexible way for traders to gain leveraged exposure to Ethereum (ETH).
  2. Increased Exposure: FLI allows traders to gain increased exposure to ETH without managing their leverage. This is also useful for inexperienced traders or those who don't have the time or expertise to actively manage their positions.
  3. Automated Index: The Flexible Leverage Index automatically adjusts leverage based on ETH volatility, reducing leverage during high volatility and increasing it during low volatility. FLI is fully automated and doesn't require active management.
  4. Maximum Returns: It offers investors the opportunity to maximize returns with increased leverage.
  5. Controlled Leverage: The Ethereum Leverage Index often includes mechanisms to control leverage, such as maximum and minimum leverage ratios. This helps in managing the risk of excessive exposure and potential losses.

Risks and Considerations

Here are some risks associated with the Ethereum Leverage Index:

  1. Increased Risk of Loss: Just as it can amplify gains, it can magnify losses also. If Ethereum’s price falls, the losses on a leveraged index can be significantly higher compared to holding Ethereum directly.
  2. Market Risk: Leveraged indices are more sensitive to price swings in the underlying asset.
  3. Volatility: High volatility can lead to frequent adjustments in the leverage ratio and impact the overall performance of the index.
  4. Tracking Error: Rebalancing can introduce tracking errors, where the index’s performance deviates from the expected leveraged return of the underlying asset.
  5. Audit and Security: While many DeFi protocols undergo security audits, there is always a risk that undiscovered vulnerabilities could be exploited.

Conclusion

In conclusion, the Ethereum Leverage Index (ELI) is a financial instrument that aims to amplify returns based on the performance of the underlying cryptocurrency. It uses mechanisms like smart contracts and DeFi protocols to automate leverage management and maintain the desired exposure.

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