Why Does USDe Yield APY Change?

First, the Conclusion

The APY displayed on the USDe Earn page is an annualized estimate of future returns under current conditions, not a fixed interest rate promised by the platform. It changes with factors such as underlying protocol rewards, market prices, time to maturity, liquidity, funding rates, and available quotas. OneKey's current support scope related to this topic is the Ethena / Pendle paths under USDe Earn; specific products, Providers, Vaults, entry points, and real-time values should be based on what is actually displayed on the OneKey product page.

The dynamic data mentioned below was queried on 2026-07-31. Page and protocol parameters may continue to change; please recheck the OneKey product page and related official documentation before operating.

What Exactly Is APY Estimating

APY (Annual Percentage Yield) typically expresses observed returns over a period on a compounded or annualized basis. It is suitable for comparing the return efficiency of different schemes, but cannot be directly equated to the final amount you receive. Actual results also depend on holding period, deposit and withdrawal prices, network fees, swap slippage, whether rewards are automatically reinvested, and whether product rules have been adjusted.

In the USDe Earn context, APY may combine different sources and should not be viewed as just a single percentage:

• The Ethena path may relate to USDe ecosystem yield distribution, staking, or related reward mechanisms. Yield sources, claiming methods, and waiting periods should be based on Ethena's official pages and OneKey's current product descriptions.
• The Pendle path typically splits yield-bearing assets into principal and yield portions and trades around the maturity date. The displayed annualized value is affected by the market's pricing of principal versus future yields.
• The APY on the page may be a real-time or near real-time estimate, not a number locked in for the entire holding period. Unless the product explicitly states a fixed term and fixed rules, it should not be used to extrapolate guaranteed returns.

Also distinguish between APY and APR. APR is simple annualized return, while APY usually includes compounding assumptions; however, calculation methodologies may differ across products. When comparing, first confirm the statistical period, whether rewards are included, whether fees are deducted, and whether the number is a historical value, an instantaneous value, or a market annualized value before maturity.

Why Does APY Change

1. Yield Sources Themselves Change

If yields relate to staking rewards, protocol incentives, or other distributions, changes in reward rates, participation scale, distribution rules, and governance parameters will affect the annualized estimate. After new funds enter, the reward per unit of capital may decrease; after incentives end or rules are adjusted, APY may also decrease. Conversely, when short-term incentives increase, page values may rise.

This does not mean USDe itself will automatically appreciate at that APY. Confirm the asset in which yields are paid, whether manual claiming is required, whether automatic reinvestment occurs, and whether rewards have lock-up or cooldown periods.

2. Funding Rates and Market Environment Affect Underlying Yields

Ethena's related yield mechanisms involve hedge positions, perpetual contract funding rates, and other market conditions. Funding rates are not fixed rates: when market long demand is strong, shorts may receive positive funding fees; when the market reverses, funding rates turn negative, or hedging costs rise, yields may narrow or even produce results in the opposite direction. Therefore, high annualized returns over a past period cannot be extrapolated as future fixed returns.

Funding rates may vary by exchange, asset, settlement cycle, and liquidity; protocols also face risks related to collateral, liquidation, custody, and execution. When reading yield figures, first check the officially disclosed yield sources, then look at the specific product scope used on the OneKey page.

3. Pendle's Maturity Date Causes Significant Fluctuations in Annualized Returns

Pendle prices the principal (PT) and yield rights (YT) of yield-bearing assets separately. As the maturity date approaches, remaining time shortens, and the same price differential may be converted into higher or lower annualized figures; market price changes will also simultaneously alter APY. This number is therefore not simply "how much it increases fixed per year after deposit," but is closely related to the current purchase price, maturity date, and yield rights valuation.

Results from holding to maturity versus exiting midway may also differ. If sold early, you may face price volatility, insufficient trading depth, or slippage; if holding yield rights, you also need to understand yield attribution and post-maturity handling. Do not choose terms solely based on the highest APY on the page.

4. Supply and Demand, Liquidity, and Exit Costs Change Realizable Returns

Product scale, number of buyers and sellers, and market depth affect swap prices. APY calculations may be based on current quotes, but by the time you actually trade, prices may have changed. For large operations, pay special attention to estimated arrival amounts, price impact, and network fees. The higher the yield figure, the more you need to check whether it comes from temporary market discounts, limited liquidity, or costs not yet deducted.

5. Compounding, Fees, and Holding Time Cause Differences Between Displayed Values and Results

APY often includes compounding assumptions, but with short-term holding, frequent operations, or rewards not automatically reinvested, actual returns will deviate from displayed values. Swap fees, protocol fees, network Gas, slippage, and possible management fees will also reduce net results. For users holding for days or weeks, annualized figures more easily amplify small daily returns and are not suitable as short-term return commitments.

How to View and Compare in OneKey

Before operating, it is recommended to verify in the following order:

1. Enter the OneKey product page, confirm whether the current USDe Earn actual path is Ethena or Pendle, and view the page-labeled APY, assets, terms, yield sources, minimum amounts, fees, and exit rules.
2. Check the APY update time and calculation methodology. If the page does not explicitly state whether it is fixed, a range, or a floating value, do not interpret it as fixed returns.
3. For the Pendle path, focus on confirming maturity date, PT/YT type, purchase or swap price, early exit methods, and liquidity; for the Ethena path, focus on reading yield distribution, lock-up/cooldown, claiming, and risk disclosures.
4. Estimate net results: expected returns minus network fees, swap costs, slippage, and possible protocol fees. Small amounts in particular should avoid fees consuming most of the returns.
5. First use an amount you can afford to lose, confirm the transaction network, receiving asset, and authorization scope, then sign. Do not treat APY, TVL, or historical rankings as proof of security.
6. Record the APY, price, term, and transaction hash at the time of operation. Review periodically afterward, rather than assuming the numbers seen at deposit will remain valid.

If page information is inconsistent with third-party screenshots or community discussions, refer to the OneKey product page and related protocol official documentation. OneKey's support scope may be adjusted; this article does not extend to support descriptions for other wallets, exchanges, or protocols.

A Simple Judgment Framework

When seeing APY rise, first ask three questions: what is the yield source, over what time window is the number calculated, and what costs and risks do I bear upon exit. When seeing APY fall, do not simply interpret it as the product "failing": it may be reduced incentives, changes in market funding rates, Pendle approaching maturity, liquidity changes, or regression of a previous short-term high value.

Finally, treat APY as a comparison tool, not a results guarantee. What really needs comparison is expected net returns, holding period, exit flexibility, contract and protocol risks, stablecoin de-pegging risks, and whether you understand the product's yield structure.

Risk Disclosure

USDe and related Earn products are not equivalent to bank deposits and do not guarantee principal or returns. APY is an estimate that may change; past data does not represent future performance. Factors such as digital asset prices, stablecoin pegs, funding rates, protocol parameters, smart contracts, oracles, liquidity, counterparties, custody, and network congestion may all lead to reduced returns, inability to exit in time, or loss of principal. Pendle-related assets may also be affected by maturity dates, price volatility, and liquidity; Ethena-related mechanisms may also be affected by market hedging, collateral, execution, and protocol rule changes. Please read OneKey and protocol official statements before operating, confirm you understand the product and can bear all losses.

References

• OneKey Official Website — OneKey
• Ethena Official Documentation: USDe — Ethena Labs
• Ethena Official Documentation: USDe Staking — Ethena Labs
• Pendle Official Documentation — Pendle
• Pendle Official Website — Pendle