Rate CLMM

Exponent’s Rate CLMM is a concentrated liquidity market maker built specifically for trading onchain interest-rate assets. Instead of concentrating liquidity around a token price, Exponent concentrates liquidity around Implied APY ranges. This makes the mechanism better suited for PT and YT markets, where the key variable is not just spot price, but the rate the market is pricing for the remaining life of the maturity. The result is a liquidity engine designed for yield markets: more capital efficient than passive AMMs, easier to quote around a rate view, and better aligned with how interest-rate products actually trade.

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Why a Rate CLMM?

Traditional AMMs were not built for assets like PT and YT. Yield markets have a few unique characteristics:

• they revolve around a fixed maturity
• PT converges toward par over time
• YT value decays as less future yield remains
• the most meaningful variable is often Implied APY, not spot price alone

The Rate CLMM adapts concentrated liquidity to these dynamics by letting LPs provide liquidity across a chosen yield range, rather than a generic or fixed rate range that limits active management and makes it harder to express differentiated strategies.

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How It Works

The Rate CLMM holds liquidity for Exponent yield markets using a PT/underlying pool. Liquidity providers choose an Implied APY range where they want to quote capital. When the market trades inside that range, their liquidity becomes active and earns fees. When the market moves outside the range, the position stays open but stops earning fees until rates come back into range or the LP repositions. This is similar in spirit to concentrated liquidity systems like Uniswap v3 or Meteora DLMM, but adapted for interest-rate markets with maturities.

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Why PT and the Underlying?

The CLMM is built around PT and its underlying (SY), not PT and YT. That structure matters because:

• PT represents the fixed-rate principal side of the market
• SY represents the standardized underlying yield asset
• the PT/SY pair provides a clean base for routing swaps and managing liquidity

YT trades are still supported, but they are not held directly in the pool. Instead, Exponent uses atomic routing through flash swaps under the hood to convert between exposures when needed. For users, this keeps the experience simple while preserving a cleaner liquidity structure at the protocol level.

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Trading on the Rate CLMM

The CLMM supports trading fixed-rate and yield exposure across Exponent markets.

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Concentrated Liquidity by Yield Range

The defining feature of the Rate CLMM is that LPs choose where they want to provide liquidity on the rate curve. A narrower range means:

• more capital efficiency
• more fee generation per unit of liquidity when the market stays in range
• more active management required if rates move away

A wider range means:

• less precision
• lower fee density
• more tolerance for rate movement without needing to rebalance

This gives LPs flexibility depending on how actively they want to manage positions and how strong their rate view is.

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Who Is It For?

The Rate CLMM is useful for several types of participants:

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Why Use the CLMM Instead of the Order Book?

The CLMM and the Rate Order Book are complementary. In general, the CLMM is better suited for users who want continuous liquidity and for LPs who want to actively market-make around a view on rates.

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Returns for LPs

LP returns on the Rate CLMM can come from several sources:

• trading fees from swap activity routed through their active range
• PT fixed-rate convergence inside the position
• underlying asset yield on the SY side of the pool
• optional emissions or incentives, when a market is incentivized

How much an LP earns depends on:

• how much trading happens
• whether rates stay inside the chosen range
• how efficiently the position is managed over time

A position that is out of range may still hold value, but it does not actively earn swap fees until it is back in range.

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Rate Markets Evolve Over Time

Because Exponent markets have maturities, the shape of a good liquidity range can change over the life of the market. This is one reason the Rate CLMM is powerful for interest-rate markets: liquidity can adapt to where the market expects rates to trade at each stage of the maturity.

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Risks and Considerations

Using the Rate CLMM comes with several considerations:

• Out-of-range risk – positions stop earning swap fees when the market leaves the selected APY range
• Active management risk – concentrated liquidity often requires monitoring and rebalancing
• Impermanent loss / inventory drift – the asset mix in a position changes as the market moves
• Liquidity risk – thinner pools can lead to wider execution for larger trades
• Smart contract risk – applies to the CLMM, Exponent core logic, and the underlying protocol

Compared with traditional AMMs, Exponent’s CLMM is built around correlated yield assets, which helps make the structure more efficient for this use case. Still, LPing is an active strategy and should be treated as such.

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FAQ and Common Issues