Penguin Finance

Penguin Finance was a Solana-native Liquidity-as-a-Service (LaaS) protocol that operated under the Neptune brand. Its core proposition was simple but addressed a persistent DeFi problem: most early protocols rented liquidity by paying unsustainable emission rewards to liquidity providers, who would leave the moment incentives ran dry. Penguin Finance gave Solana protocols a way to buy their liquidity outright through a bonding mechanism adapted from the Olympus Pro model that had gained traction on Ethereum.

The project launched on November 25, 2021. As of August 2026, its official domain (png.fi) is listed for sale on a domain brokerage, and its last published content is a second-anniversary review from November 2023. The project should be considered inactive.

How It Worked

The centerpiece of Penguin Finance was its bonding service, marketed as Penguin Bonds or Treasury Bills in the Neptune Bond Market. The mechanism worked as follows: a Solana protocol listed a bond market on the Neptune platform, specifying which LP token pairs it would accept. Users who held those LP tokens could then sell them to the protocol through Penguin Finance in exchange for the protocol's native payout token at a discount to market price.

The LP tokens were not burned or locked — they transferred to the protocol, which became the owner of that liquidity. The buyer received a Vtoken representing the vesting position. Once the vesting period elapsed, the Vtoken could be redeemed one-for-one for the underlying payout token. The Vtoken was transferable, meaning buyers could sell their vesting position to others before maturity.

This arrangement benefited both sides. Protocols gained protocol-owned liquidity (POL) — LP holdings that continued to generate trading fee revenue rather than draining the treasury through emissions. Users gained discounted tokens, though they had to weigh the discount against the vesting delay and the execution risk of the payout token's price moving during vesting.

Penguin Finance combined the bonding service with a standard token-swap interface and staking pools, positioning the platform as an end-to-end liquidity infrastructure layer for Solana projects.

Products and Features

Neptune Bond Market — The bond marketplace was the signature product. Partner protocols listed their bond programs with configurable parameters: payout token, accepted LP pairs, discount rate, vesting duration, and capacity. Multiple protocols could run concurrent bond markets on the same interface, making Neptune a shared venue rather than bespoke infrastructure each protocol built itself.

Penguin Bonds (Treasury Bills) — The individual bond instruments. Each bond was represented on-chain and vested over a set schedule. The Vtoken structure allowed the bond position to remain liquid — holders could transfer or sell vtokens before the vesting cliff arrived.

Cumulative Merkle Distributor — A distinct infrastructure tool Penguin Finance built for the broader Solana ecosystem. The distributor allowed protocols to send token rewards to thousands of addresses via a Merkle proof system. Recipients claimed from the distributor contract rather than requiring the sender to push tokens to every wallet. By the project's second anniversary in November 2023, more than 389,000 unique distributors had been created using the tool, suggesting significant uptake beyond Penguin Finance's own bonding product.

Staking — Penguin Finance also ran staking pools, allowing users to stake supported tokens in exchange for yield. The staking component was positioned as a complement to the bonding system, giving protocols tools to incentivize both LP contribution and token holding.

Swap — A token exchange interface rounded out the product suite, making Penguin Finance a self-contained DeFi destination rather than a protocol that required users to navigate elsewhere for basic operations.

Ecosystem and Partnerships

During its two years of operation, Penguin Finance partnered with several Solana projects that used the Neptune Bond Market to acquire protocol-owned liquidity. Glitter Finance, a cross-chain bridge protocol, ran a bond program through Penguin Finance to secure POL for bridged token pairs. RACE Game, a Web3 gaming project, used the platform for treasury diversification. Mises Browser, a Web3-native mobile browser, also partnered with Penguin Finance to bring LaaS tooling to its ecosystem.

Penguin Finance and Parrot Finance ran a joint grant program that subsidized bond listings where the LP quote asset was PAI (Parrot's stablecoin). Under that arrangement, Penguin Finance would purchase the protocol's payout tokens for two weeks when a bond was set up for an eight-week duration, effectively co-subsidizing the token sale during the bond's early period.

These partnerships reflect the phase of Solana DeFi in 2022–2023 when protocol-owned liquidity was an active area of experimentation, following the model that OlympusDAO had popularized on Ethereum.

Metrics

At Penguin Finance's second anniversary in November 2023, the team reported the following cumulative figures:

• Total trading volume: over $14 million
• Total bonded value: over $502,000
• Total distributors created: over 389,000

The bonded value figure was modest in the context of Solana DeFi, but the distributor count suggested the Merkle distributor tool was being used at scale by projects beyond the core bonding product.

Discontinuation

No formal shutdown announcement has been located. The project's second anniversary post, published November 25, 2023, closed on an optimistic note. No public communication followed. By the time of this writing (August 2026), the official domain png.fi is listed for sale with a domain brokerage, the Twitter account (@png_fi) is absent from the project's own source records, and no protocol activity announcements have appeared in over two and a half years. The on-chain swap program (PSwapMdSai8tjrEXcxFeQth87xC4rRsa4VA5mhGhXkP) remains deployed on Solana but the surrounding application infrastructure appears to have been abandoned.

Penguin Finance is best understood as a first-generation LaaS experiment on Solana — a protocol that adapted the Olympus bonding model for the Solana ecosystem during the 2022–2023 period when protocol-owned liquidity was a dominant design thesis in DeFi. The Merkle distributor it contributed remains a documented infrastructure tool, though the core bonding platform is no longer operational.