At DefiPlaza, we’ve spent the past year refining the CALM algorithm to offer the most efficient, LP-optimized trading experience on Radix. From the beginning, CALM has been designed to maximize profitability for liquidity providers: eliminating toxic order flow, minimizing impermanent loss through internal oracles, and introducing a dynamic bid-ask spread to generate passive income for LPs.
Now, we’re proud to launch StableCALM, a specialized version of the CALM algorithm built exclusively for stablecoin pairs.
Why StableCALM?
Stablecoin liquidity is a different beast. Unlike volatile token pairs, stable-to-stable trades should ideally have:
- Extremely tight price bands
- Minimal slippage
- High capital efficiency
- Maximum resilience during depegs
Many AMMs attempt to solve this with “bin” or “tick”-based concentrated liquidity, which works, until it doesn’t. If a token depegs and trades exit the active bin, liquidity disappears. Slippage skyrockets. LPs take a hit.
StableCALM was designed to solve this.
What Makes StableCALM Different?
StableCALM uses the same fundamental engine as CALM, a continuous, oracle-aware bonding curve, but applies extreme concentration where it matters most: near the peg.
Here’s what makes it stand out:
✅ Ultra-concentrated liquidity around the peg
With a 1000x increase in concentration compared to normal CALM pools, StableCALM creates a razor-thin trading band that absorbs volume with minimal price impact.
✅ Continuous bonding curves
No bins. No ticks. Liquidity never “runs out”, even if one token temporarily depegs. Trading continues, slippage is managed, and LPs are still rewarded.
✅ Higher yield during volatility
If a depeg event happens, StableCALM doesn’t panic. It embraces volatility. The bonding curve captures more spread and lets LPs benefit from the eventual return to peg.
✅ Consistent yield on every trade
The CALM bid-ask spread is still here, quietly earning for LPs even in calm markets. You don’t have to rely on trading volume spikes to see returns.
✅ Wallet recognition for LP positions
No more guessing or relying on dApps, StableCALM LP tokens are recognized directly in your Radix wallet, improving transparency and safety.
Independently Reviewed
To ensure correctness, we asked Octo, one of the most trusted community developers in the Radix ecosystem, to verify the StableCALM implementation. His review confirmed the whitepaper math holds up in Scrypto, and that the modified logic behaves exactly as intended.
Live-Tested Since August
StableCALM has already been running quietly behind the scenes. Our hUSDC/hUSDT test pool has been live on Radix mainnet since August. Over the past few months, we’ve used it to fine-tune the parameters, simulate edge cases, and verify returns for LPs.
The result?
A production-ready stablecoin pool with:
- 1000x liquidity concentration
- 0.05% swap fee, optimized for stablecoin flows
- Enhanced income potential during volatility and depegs
Launch Pairs Available Now
We’re kicking things off with two carefully selected stable pairs:
- hUSDT / hUSDC — two Hyperlane-wrapped stablecoins on Radix
- fUSD / hUSDC — combining a Radix-native stablecoin with a bridged one
Both pairs are now live in the DefiPlaza app and ready for LPs.
A Refreshed dApp Experience
To support the launch, we’ve also updated the DefiPlaza dApp. LP positions are now displayed with greater clarity, making it easier to see your performance and returns at a glance.
If you’re holding stablecoins on Radix, this is the best time to put them to work. StableCALM is the next evolution in efficient, resilient, LP-first AMMs.
Try it now at defiplaza.net
Let’s raise the standard for stablecoin trading, together.