Liquidity provision is one of the most popular ways to participate in DeFi. On platforms like STON.fi, users can contribute assets to liquidity pools and earn a share of trading fees. However, before becoming a liquidity provider, it is important to understand one of the key risks involved: impermanent loss.
What Is Impermanent Loss?
Impermanent loss happens when the prices of the assets you deposited into a liquidity pool change relative to each other.
The key comparison is simple:
Value of your assets in the liquidity pool vs. value of simply holding those same assets in your wallet.
If the price difference between the two assets becomes significant, your liquidity position may be worth less than simply holding the assets outside the pool. This difference is known as impermanent loss.
Understanding It With a Simple STON.fi Example
Imagine you provide liquidity to a hypothetical TON/USDT pool on STON.fi.
You deposit:
$500 worth of TON
$500 worth of USDT
Your total position is worth $1,000.
Because STON.fi operates with automated market maker liquidity pools, traders can swap between the assets in the pool. As trading activity changes the balance of the pool, the composition of your liquidity position also changes.
What happens if TON rises?
Suppose the price of TON increases significantly.
Traders may swap USDT for TON, causing the pool to contain relatively less TON and more USDT.
As a liquidity provider, you still own your percentage share of the pool—but your position now contains a different balance of TON and USDT than when you initially deposited.
This automatic rebalancing is what creates exposure to impermanent loss.
If you had simply held your original TON and USDT, the outcome could be more valuable than your liquidity position at that moment.
Why Is It Called “Impermanent”?
The loss is described as impermanent because price movements can reverse.
If the relative prices of the two assets return closer to the level they had when you deposited liquidity, the impermanent loss can decrease or potentially disappear.
However, if you withdraw your liquidity while the price difference remains significant, the loss relative to simply holding the assets becomes realized.
So, the word “impermanent” does not mean risk-free. It simply describes the fact that the effect depends on how prices move while your assets remain in the pool.
Where Do STON.fi Liquidity Providers Earn Rewards?
Impermanent loss is only one side of the equation.
Liquidity providers on STON.fi can also earn a share of swap fees generated by trading activity in their pool. In some cases, additional farming rewards may also be available. The actual outcome of a liquidity position depends on both the rewards earned and the impact of price movements.
Think about it this way:
Liquidity provider outcome = trading fees + possible incentives − impermanent loss
This is why a pool with strong trading activity may generate meaningful fee income, while a highly volatile pair may expose liquidity providers to greater impermanent loss.
Stable Pairs vs. Volatile Pairs
Not every liquidity pool carries the same level of impermanent loss risk.
Stable pairs
Pairs involving assets that tend to stay close in value are generally less exposed to impermanent loss.
Examples may include:
Stablecoin pairs
Closely pegged assets
Wrapped versions of the same underlying asset
Volatile pairs
Pairs involving assets with large price movements can create greater impermanent loss exposure.
For example, if one token rapidly increases or decreases in price compared with the other asset, the pool may rebalance significantly.
STON.fi's documentation notes that the larger the price change between deposited assets, the greater the potential exposure to impermanent loss.
STON.fi and Impermanent Loss Protection
One interesting approach STON.fi has introduced is an impermanent loss protection mechanism for eligible liquidity provision under specific conditions.
According to STON.fi, the program is designed to partially offset eligible impermanent loss, with specific limits, pool requirements, and payout conditions. It is important to note that this feature is not insurance, does not guarantee returns, and is subject to its stated terms and conditions.
The broader lesson is important:
Risk management matters just as much as earning yield.
A high APR may look attractive, but liquidity providers should also consider:
Price volatility
Pool composition
Trading volume
Swap fees
Available incentives
Impermanent loss risk
Pool-specific conditions
The Bottom Line
Impermanent loss is one of the most important concepts to understand before providing liquidity in DeFi.
Using STON.fi as an example, liquidity pools allow users to contribute assets that support decentralized trading while potentially earning a share of swap fees. But as token prices change, the pool automatically rebalances, which can cause your liquidity position to perform differently from simply holding the original assets.
The most important takeaway is simple:
Liquidity provision is not just about earning yield. It is about understanding the relationship between rewards and risk.
Before entering any pool, take time to study the assets, their volatility, the pool's activity, and the potential impact of impermanent loss.
In DeFi, the best liquidity providers are not only looking at how much they can earn.
They also understand what they are giving up—and what risks they are taking—to earn it.
Disclaimer: This article is for educational purposes only and should not be considered financial advice. Always do your own research before providing liquidity or investing in digital assets.