> For the complete documentation index, see [llms.txt](https://arcafinance.gitbook.io/arcafinance-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://arcafinance.gitbook.io/arcafinance-docs/protocol/ntoken-metro-shadow/piggy-bank.md).

# Piggy Bank

<figure><img src="/files/YVPSdv8nWRJYXxhH76Wz" alt=""><figcaption></figcaption></figure>

## Piggy Bank Overview

*The Piggy Bank is a mechanism in Arca's DeFi protocol designed to make locked governance token liquid by handlling penalties from early exits of nTOKEN locks. Instead of wasting or burning these penalties, they are redistributed to enhance the ecosystem's sustainability, liquidity, and rewards for long-term participants. This creates resilience by recycling funds rather than relying on constant inflows, turning potential exit pressure into protocol strength.*

***

### What is the Piggy Bank?

*The Piggy Bank collects penalties from users who exit their nTOKEN locks early. These penalties are not discarded or burned but are redistributed to bolster the overall ecosystem. This makes Arca more sustainable and rewarding for committed users.*

<figure><img src="/files/lhU24kGJo3VxQi9TCTeW" alt=""><figcaption></figcaption></figure>

### How Penalties Flow Into It

*When a user exits early, they incur a penalty based on their lock duration. The penalties are split as follows:*

* *`90% → Piggy Bank:` The majority goes directly into the Piggy Bank for ecosystem recycling*
* *`5% → LP Provision:` Supports liquidity provision*
* *`5% → 1-year Lockers:` Rewards users with long-term commitments*

*This distribution fuels both liquidity and loyalty within the protocol.*

***

### What Does the Piggy Bank Do With the Funds?

*The Piggy Bank recycles funds to achieve several key outcomes:*

* *Refills early exit liquidity for nTokens*
* *Makes your locked nTokens redeemable*
* *Boosts vault rewards from early exit penalties*
* *Sustains protocol yield*
* *Aligns long-term incentives across Sonic*

*In short, the system never leaks, it recycles funds to maintain stability.*

<figure><img src="/files/bPvQzJYAaie0JpIir7S5" alt=""><figcaption></figcaption></figure>

*Without mechanisms like the Piggy Bank, DeFi protocols depend on constant inflows of new capital, which can lead to instability. Arca's Piggy Bank builds resilience, fairness, and smarter rewards by converting exit pressure into protocol power. This promotes sustainability and incentivizes long-term participation over short-term gains.*