Raydium CLMM Upgrade Analysis: How Limit Orders and Dynamic Fees Reshape the Solana DEX Landscape

On May 18, 2026, Solana’s leading decentralized exchange Raydium officially completed a major upgrade to its Concentrated Liquidity Market Maker (CLMM) program. This upgrade introduces three core features: in-pool limit orders, dynamic fee mechanisms, and optional unilateral fee collection, marking a new iteration in Raydium’s efforts to optimize capital efficiency and enrich trading tools. Against the backdrop of accelerating segmentation within the Solana DEX ecosystem, can this upgrade help Raydium rebuild its competitive moat?



## Key Functional Changes Brought by the CLMM Upgrade

Raydium’s CLMM program upgrade centers around three optional “add-on” features. First, in-pool limit orders. Liquidity providers and traders can set limit orders directly within the concentrated liquidity pool, eliminating reliance on external order book systems. Second, dynamic fee mechanisms. Transaction fees can adapt based on market volatility, optimizing liquidity providers’ earnings across different market conditions. Third, unilateral fee collection. Liquidity providers can choose to collect fees only from trades in a specific direction, offering unique value in markets with strong unidirectional price expectations. All three features are backward compatible, with strict restrictions on protocol-level disruptions, resulting in almost imperceptible changes for end users.

## How the Post-Upgrade Trading Experience and Capital Efficiency Are Optimized

The introduction of limit orders changes the fundamental logic of DEX trading. Previously, users could only execute trades at real-time market prices within AMMs; now, they can place orders at specified prices and wait for execution. This is a significant upgrade for traders requiring precise execution strategies. The dynamic fee mechanism improves the incentive structure for liquidity provision—fees increase during high volatility periods, rewarding LPs with higher compensation; during low volatility, fees decrease, reducing trading costs. Unilateral fee collection provides professional market makers with more refined risk management tools. The combination of these features is expected to systematically enhance Raydium’s capital efficiency and execution quality.

## Market Data and the Challenges Raydium Currently Faces

However, the upgrade comes at a time when Raydium’s market share is under pressure. As of mid-May 2026, Solana DEX traffic is highly concentrated among a few protocols. Over the past 7 days, Meteora accounted for $84.7 billion in trading volume, capturing 64.9% of the market; PumpSwap handled $37.9 billion, with a 29.0% share; Raydium’s volume was only $1.61B, representing just 1.2%. Orca’s trading volume exceeds Raydium’s, but the number of traders is only one-fifth of Raydium’s; the average trade size on Meteora is $884, while on Raydium it’s only $117, a 7.5x difference. These figures indicate that Raydium’s main traffic comes from numerous small trades rather than large institutional orders.

## Potential Impact of New Features on Traffic and Revenue

The pathway from Raydium’s CLMM upgrade to protocol revenue can be analyzed along two dimensions. Trading volume side: Limit orders and dynamic fees are likely to attract more professional traders, especially high-frequency traders sensitive to execution quality and costs. Fee rate side: The dynamic fee mechanism can automatically increase fees during periods of rising volatility, boosting overall protocol revenue. Each trade on Raydium involves a swap fee, with the standard AMM pool fee set at 0.25%, most of which is distributed to liquidity providers, with a portion used for RAY token buybacks. If both trading volume and fee rates increase post-upgrade, the scale of RAY buybacks will also expand. However, it’s important to note that this upgrade does not involve changes to the tokenomics or new emission schedules, so improvements to the protocol’s fundamentals are more gradual and incremental rather than event-driven surges.

## Raydium’s Structural Position in the Solana DEX Ecosystem

To understand the significance of Raydium’s upgrade, it’s essential to grasp its structural position within the Solana DEX ecosystem. Since early 2026, the ecosystem has experienced a clear bifurcation: active AMMs and passive AMMs are now on fundamentally different paths. Active AMMs account for over 50% of all Solana spot trading volume, concentrated mainly on deep, oracle-driven trading pairs, where execution quality is a core competitive dimension. HumidiFi currently controls about 65% of active AMM volume, followed by Tessera (~18%) and GoonFi (~7%).

Passive AMMs—represented by Raydium, Orca, Meteora’s classic pools—still provide primary liquidity for new tokens and long-tail assets, but their share of high-liquidity traffic has significantly declined. Notably, new-generation passive AMMs like PumpSwap, Futarchy AMM, and Jupiter DTF pools no longer create pools for SOL–USDC or SOL–USDT, recognizing that they cannot compete with traditional market makers in short-tail assets in terms of pricing, latency, or reliability.

Raydium’s core challenge is that it does not belong to the active AMM camp, making it difficult to gain advantages in high-frequency execution markets; yet it also faces pressure from new-generation passive AMMs driven by issuance platforms—such as PumpSwap and Pump.fun’s vertical integration, and Meteora’s ecosystem linkage with Jupiter DTF—forming a more complete issuance→liquidity→trading loop. While Raydium’s LaunchLab issuance platform is live, it still lags behind these vertically integrated models.

## Order Flow Capture as a Critical Variable for DEX Survival

In the Solana DEX ecosystem, “who controls order flow” has become a more critical competitive dimension than “who built the best AMM.” Active AMMs have almost no native front-end traffic—over 95% of HumidiFi’s volume arrives via aggregators like Jupiter, and their competitiveness depends entirely on providing the most compact, fastest, and most reliable execution. Passive AMMs have lost their edge in short-tail asset execution; the most sustainable models in 2026 are those centered on issuance platforms with vertical integration, where AMMs serve as monetization layers for issued tokens.

Raydium’s CLMM upgrade is, to some extent, a response to this trend. Limit orders and dynamic fees enhance execution-layer competitiveness, while unilateral fee collection offers professional market makers more flexible tools. Whether these features can help Raydium narrow the gap with active AMMs in “execution” and strengthen its position in “issuance” will be key to realizing the upgrade’s value.

## Foundation of Token Economics and Security Mechanisms

Raydium’s token model and security architecture underpin the functional upgrades. RAY is the native utility and governance token, allowing holders to participate in staking for rewards, liquidity mining, fee discounts, and community voting. Of the transaction fees collected, 12% is allocated to RAY buybacks. On the security front, Raydium has upgraded its program admin rights to Squads V4, with a 24-hour delay lock and multi-signature security measures, including offline isolated machines and hardware keys. As of May 18, 2026, on the Gate platform, RAY remains tradable, with real-time prices and market depth accessible to users.

## Potential Risks and Uncertainties Post-Upgrade

Potential risks of this upgrade must also be acknowledged. First, the adaptive algorithm for dynamic fees is complex; improper parameter settings could lead to unexpectedly high fees, suppressing trading activity. Second, the on-chain success rate and slippage control of limit orders still require real-market testing. Third, unilateral fee collection in extreme unidirectional price scenarios could cause imbalance in LP earnings. Most critically, Raydium faces the structural segmentation of the Solana DEX ecosystem—a protocol-level feature upgrade alone may not reverse the ongoing decline in market share, and it will take time and market data to verify effectiveness. The moat built by active AMMs like HumidiFi, with their high-frequency execution advantages, cannot be crossed overnight.

## Summary

Raydium’s CLMM program upgrade on May 18, 2026, introduces in-pool limit orders, dynamic fees, and unilateral fee collection, systematically enhancing the protocol’s trading tools and capital efficiency. Amid the accelerating bifurcation of the Solana DEX ecosystem into “issuance-focused” and “high-frequency execution” models, this upgrade aims to strengthen execution-layer competitiveness within the passive AMM framework. However, Raydium currently accounts for only about 1.2% of total trading volume and faces dual competitive pressures from active AMMs (represented by HumidiFi) and vertically integrated issuance platforms (like PumpSwap and Meteora). The real impact of the upgrade will depend on actual trading volume growth, LP yield optimization, and increased token buybacks. Market participants and users should focus on the evolving usage data of the protocol post-upgrade rather than short-term price movements alone.

## FAQ

Q1: When exactly was the Raydium CLMM upgrade launched?

Raydium officially completed the CLMM program upgrade on May 18, 2026. The upgrade is backward compatible, with almost no disruption perceived on the user end.

Q2: How does the limit order feature work specifically?

The newly added limit order feature is optional, allowing users to set limit orders at specified prices within the concentrated liquidity pools. When the market price reaches the set level, the order executes automatically without relying on external order book systems.

Q3: How does the dynamic fee mechanism operate?

The dynamic fee mechanism adjusts transaction fees adaptively based on market volatility. During high volatility, fees automatically increase to compensate liquidity providers; during low volatility, fees decrease to lower trading costs, balancing market efficiency and LP returns.

Q4: Will this upgrade affect the RAY token’s economic model?

No, this upgrade does not involve changes to the tokenomics or new emission schedules. RAY’s staking, governance, and buyback mechanisms remain unchanged. The enhanced protocol usage is expected to indirectly support RAY demand and staking yields through increased trading volume and fee income.

Q5: What is Raydium’s current competitive position within the Solana DEX market?

As of mid-May 2026, Raydium’s 7-day trading volume share is approximately 1.2%, lower than Meteora (64.9%) and PumpSwap (29.0%). While its daily trading amounts are smaller, its trading frequency is high, with an average trade size of about $117. The platform faces structural pressure to shift from passive AMM models toward more efficient trading paradigms.

Q6: Is RAY tradable on the Gate platform?

Yes, as of May 18, 2026, RAY remains tradable on Gate. Users can view real-time prices and market depth data there.

Q7: How can users participate in providing liquidity on Raydium?

Users can deposit tokens into standard AMM pools or CLMM pools via the Raydium interface to become liquidity providers. Post-upgrade, LPs can choose whether to enable unilateral fee collection to further optimize yields. Users holding RAY tokens directly on Gate can stake them to earn protocol revenue sharing.