You Don't Need a Depeg to Lose Money on Stablecoin Yield. Rising Borrow Costs Can Do It Quietly.
A side-by-side, equal-$10,000 comparison of Uphold's RLUSD Earn and Ethena's leveraged Earn+ strategy reveals something most stablecoin yield chasers never see coming: borrowing costs alone can push a leveraged position into negative territory, no crisis required.
The Setup
Uphold's RLUSD Earn is the straightforward play. You deposit, you earn, the rate is what it is. No leverage, no moving parts. It's the stablecoin yield product you explain to your parents.
Ethena's Earn+ is a different animal. The strategy layers leverage on top of stablecoin yield, amplifying returns when funding rates are favorable. When everything lines up, the numbers look impressive. That's the pitch.
But here's the part the pitch skips over.
When Borrow Costs Bite
The Defiant's illustration uses a clean $10,000 position in both products to map what happens as borrowing costs rise. On the leveraged side, the math turns hostile fast. The yield you're earning on the underlying position gets eaten by the cost of maintaining the leverage. At a certain threshold, the net return goes negative.
No hack. No depeg. No black swan. Just rates moving against you in a market that moves rates constantly.
This is the part of leveraged yield strategies that gets buried in footnotes. The upside is marketed. The borrow cost sensitivity is not.
Why This Matters Right Now
Funding rates and borrowing costs across DeFi have been volatile in 2024 and into 2025. Periods of elevated borrowing demand, driven by traders leveraging up during bull momentum, can compress or eliminate the spread that leveraged stablecoin strategies depend on.
When the spread compresses, the leveraged product doesn't just underperform. It can actively cost you money while your capital sits locked in what looks, on the surface, like a conservative yield position.
The RLUSD simple earn product doesn't carry this risk profile. You get the rate, nothing more, nothing less. Lower ceiling, but the floor doesn't fall out when macro conditions shift.
What Crypto Holders Should Actually Watch
If you are in any leveraged stablecoin yield product right now, the number to track is not the advertised APY. It is the net yield after borrow costs, updated in real time. Most interfaces do not make this easy to find. That is not an accident.
Compare that live net figure against simple, unleveraged alternatives before assuming the higher headline rate is actually delivering more. In a rising borrow cost environment, it often isn't.
The safest yield is the one that still exists after you do the math.