DeFi 2.0: Liquidity as a Service Reshaping Financial Infrastructure

2021 was the "liquidity crisis year" for DeFi — when lending liquidity alliance explosions and stablecoin linkages collapsed, retail funds fractured between "iron locks" and "tremors." In response to this crisis, DeFi 2.0 gave birth to its own solution: transforming liquidity from "borrowed resources" into "protocol-owned assets".

The representative protocol of this direction is Olympus DAO, which introduced the concept of "Protocol Controlled Value (PCV)" and claimed that it no longer needs to pay expensive subsidies to liquidity providers to automatically "buy" liquidity, allowing the protocol to truly control its own liquidity pool.

Meanwhile, the concentrated liquidity of Uniswap v3 optimized fee returns, reducing the impact of impermanent loss on liquidity providers, but it remains within the framework of DeFi 1.0 — liquidity still relies on the "farmer" relationship with external providers.

1. Core Concept of Liquidity as a Service (LaaS)

To understand LaaS, we need to flip the question: not "how do we find more liquidity" but "how do we make liquidity no longer a problem".

In the LaaS model, the protocol issues its own tokens (such as Olympus OHM) and in a magical "purchase" method, unites liquidity providers to transfer their LP positions to the protocol. This way, the protocol controls its own liquidity, and liquidity is no longer an imported resource but an asset of the protocol itself.

Three key analytical dimensions:

• How to "buy" liquidity: Token redemption promise "redeem tokens + buy liquidity bonds", Olympus bonds are in the form of free "buying" a large number of Dai-CRV, FRAX, WETH and other LP positions as free Protocol Controlled Value.
• How to serve users: Liquidity can support trading, lending, hedging, bundling operations, which are the real reasons users use the protocol. From this perspective, on-chain liquidity is the basic service provided by the protocol, users only need to pay fees (gas fee, interest) to use, without needing to provide liquidity again.

2. Representative Protocol Practices

1. Olympus DAO: PCV Pioneer

Founded in 2021, Olympus DAO's core narrative is achieving priest-type stablecoin OHM through Protocol Controlled Value (PCV). Unlike traditional cash flow liquidity mining, Olympus does not "lend" subsidies to LPs, but directly "buys" liquidity through bonds smart contracts. Each OHM token is backed by at least $1 of multi-asset returns (DAI, FRAX, CRV, etc.) as support. Protocol-controlled value at its peak exceeded $100 billion. Since all of the protocol's liquidity is owned by the protocol, theoretically OHM tokens will never collapse due to insufficient liquidity.

2. GMX: Decentralized Futures Architecture of Liquidity Sharing

Users do 30x futures trading on GMX at a 0.01% sliding point fee. Full-chain liquidity comes from the GLP pool (composed of ETH, BTC, USDC, etc.), investors earning 70% of transaction fees can invest funds. GMX is a "all-inclusive" protocol, technology allies have the EY value to make the liquidity ecosystem more meta-active.

3. Curve & Convex: Multiple Matching of Liquidity

Curve provides the best matching for stablecoin swaps, Convex softens the equity flow of CVX tokens at the upper layer, then distributes it to different players. This is a "dual-token model" practice, which has long been an old-friend relationship between different protocol service objects.

3. Challenges and Risks

Speculative Bubble Risk: Olympus Hack (2022) and linked collisions caused OHM price to drop 99% until the market mainstream gave up the "free stablecoin" era, Emblem Vault stolen $100 million in transactions.

"Infinite Issuance" is Essentially a Technical Exit: When the protocol links bonds to convert LP and if the LP is temporarily transferred to the protocol, false market depth may cause the protocol to be unilaterally promoted, gradually consuming PCV.

Centralization Reversal: False control distribution, false liquidity ownership leads to the protocol's own power centralization, initially against centralization, but eventually itself becomes centralized.

4. Future Direction: Building with Layer 2

The next step for DeFi 2.0 is combining with Layer 2, leveraging Rollup technology to lower transaction costs, making it comfortable to flow on Ethereum. And when some protocols like EtherFi propose "decentralized pre-ecosystem" schemes, imagine how LP rights are characterized as flexible assets, supporting virtual loans and several real assets ".

Meanwhile, some protocols like Diagonal Finance have begun to explore cross-chain liquidity interaction, with Wires and LayerZero, the usage functions of liquidity (providing liquidity, providing liquidity functions, rather than the liquidity of specific protocols) are separated, realizing the capability of liquidity sharing among protocols.

5. Conclusion: A New Protocol of DeFi 2.0

DeFi 2.0 is not just a technology upgrade, but also a model business model transformation from "professional service delivery". When the protocol can simultaneously control its own liquidity and "rent" it to users, they free themselves from the annual "expensive liquidity rent". This is an improvement in the operation of financial professional, the prototype of a new type of financial infrastructure.