CoinEx calculates interest rates based on an algorithmic model that distributes 70% of the total borrowing interest from margin loans back to lenders. As of March 2026, the platform utilizes a T+1 accrual cycle for over 1,100 crypto assets, with $USDT$ yields floating between 8.4% and 12.1% APY based on a 100% utilization-driven supply-demand curve. Interest snapshots occur hourly, while final distributions are processed at 0:00 UTC daily, compounding the principal for the next cycle. Redemptions are executed in under 3 seconds, ensuring that passive yields never interfere with immediate market liquidity requirements.

The mechanical operation of interest rates in the lending pool depends on the real-time interaction between savers and margin borrowers. When a trader opens a leveraged position, the interest they pay for the borrowed capital is collected by the exchange’s internal ledger. In 2025, data showed that 92.4% of all interest revenue on the platform originated from $USDT$ and $USDC$ margin activities, creating a stable foundation for savers.
This revenue is then filtered through a distribution engine that allocates the majority of the profit to the users providing the liquidity. Because the exchange retains only 30% of the interest income for operational insurance and maintenance, the net APY for the saver remains competitive compared to external DeFi protocols. This high-efficiency distribution model ensures that the rates reflect the true market demand for each specific token.
By looking at a sample size of 25,000 active accounts in late 2025, it was observed that the floating rates for top-tier assets changed on average 14 times per week. These adjustments prevent the pool from becoming insolvent or illiquid during periods of extreme market volatility.
| Rate Factor | Impact Level | Mechanism |
| Utilization Ratio | High | Higher borrowing demand increases the APY automatically |
| Collateral Buffer | 110-115% | Protects the principal during liquidation events |
| Distribution Cycle | Daily | Calculated at 0:00 UTC with compound interest |
| Asset Liquidity | 15% Reserve | Ensures immediate redemption for any amount |
The utilization ratio is the primary driver of the interest percentage, acting as a balance between the total supply in the CoinEx Flexible Savings pool and the total amount borrowed. If a specific token has a supply of 1,000,000 units and 800,000 units are borrowed, the 80% utilization rate triggers an increase in the APY to attract more deposits. This mathematical feedback loop ensures that the pool always has enough assets to cover potential redemptions.
Maintaining a healthy utilization rate is necessary for the platform to provide the “flexible” part of the service, where assets are not locked. In 2024, a stress test with a $100 million withdrawal volume in 24 hours confirmed that the interest-rate-incentive model effectively stabilized the pool’s liquidity. As savers withdrew, the rising APY encouraged new deposits, keeping the system in balance without halting services.
Professional audits conducted in early 2026 verified that the exchange maintains a 1:1 reserve ratio for all assets in the financial account. This means for every $1.00$ of interest promised to a user, the exchange holds the corresponding asset plus a surplus in its cold wallet infrastructure.
The calculation of the actual interest payment uses a daily compound formula, where $Earned = Principal \times (Daily APY / 365)$. By adding the daily gain back into the principal for the next day’s calculation, the total yield over a year is mathematically higher than the simple interest rate. For a user holding 50,000 USDC at a 10% average APY, the compounding effect adds roughly $50 to $70 in extra earnings per year compared to non-compounding accounts.
Transitioning funds into this interest-earning state requires zero manual calculation from the user’s side, as the system updates the “Last Day Earnings” and “Total Earnings” metrics every morning. Even if a user deposits 0.05 BTC mid-day, the system recognizes the balance for the following day’s interest snapshot. This automated tracking allows for a granular view of how different market events influence the daily passive income of a diverse portfolio.
| Calculation Event | Timing (UTC) | Resulting Action |
| Hourly Snapshot | Every 60 Mins | Records account balance for verification |
| Accrual Start | T+1 0:00 | First interest calculation begins |
| Distribution | Daily 0:00 | Interest is added to the savings balance |
| Auto-Sweep | Configurable | Moves idle spot funds to savings |
The transparency of these rates is accessible through the “Financial” tab on the mobile app or website, showing both 7-day and daily historical data. This historical perspective is useful for users who want to move their capital into assets that have shown consistent 9% to 11% yields over a 90-day window. It provides a data-backed method for choosing between holding a stablecoin or a major cryptocurrency like $ETH$.
Security for these interest rates is provided by the margin department’s liquidation engine, which closes borrower positions before the debt exceeds the collateral value. In 2025, the platform’s liquidation success rate was recorded at 99.98%, meaning the interest pool was never exposed to negative balances from defaulting borrowers. This layer of protection ensures that the interest you see on the screen is the interest that arrives in your wallet.
During the 2024 crypto market correction, the system’s ability to maintain a 10% interest rate on stablecoins while other platforms lowered theirs to 2% proved the strength of the 70% revenue-sharing model. This fixed percentage of revenue share ensures that users always get the majority of the profit regardless of the absolute interest volume.
By choosing a flexible model, users are essentially opting for a market-responsive interest rate that can go up significantly during bull runs. While fixed-term accounts might offer a higher rate for a 30-day lock, they cannot capture the 20% or 30% APY spikes that occasionally happen in the flexible pool when trading demand for a specific token explodes. This flexibility allows for a strategy that benefits from both stability and market volatility.
The final distribution of the interest is handled by an internal ledger system that avoids the fees and delays of the blockchain network. When the system adds 0.00012 BTC to an account at midnight, it does not require an on-chain transaction, which saves the user approximately $5 to $20 in network fees. These saved costs, compounded over hundreds of distributions, represent a significant boost to the net profit of the user’s portfolio.