> For the complete documentation index, see [llms.txt](https://whitepaper.yuzo.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.yuzo.xyz/usdwaifus/trading.md). # Trading $WAIFUS trades through a Uniswap v4 liquidity pool on Robinhood Chain. The pool uses a custom Yuzo v4 hook that routes a portion of each buy and sell through the Yuna Economy. ``` BUY 2% SELL 5% ``` The mechanism operates at the liquidity-pool level. It is not an ERC-20 transfer tax. {% hint style="info" %} The hook applies to swaps through the configured $WAIFUS pool. Wallet-to-wallet transfers are not treated as buys or sells. {% endhint %} ### **Trade Routing** The custom hook applies different routing to buys and sells. ``` $WAIFUS TRADE ROUTING BUY TRADE ↓ 2% HOOK ↓ 100% STOCK TOKEN PURCHASES EFFECTIVE ROUTING 2% OF TRADE → STOCK TOKENS SELL TRADE ↓ 5% HOOK ├── 80% → STOCK TOKEN PURCHASES └── 20% → PROTOCOL EFFECTIVE ROUTING 4% OF TRADE → STOCK TOKENS 1% OF TRADE → PROTOCOL ``` ### **Stock Injection** Stock Tokens acquired through $WAIFUS trading are routed into the Piggy Bank. There, they become 100% part of the value available for eligible Pay Day distributions. ``` $WAIFUS TRADING ↓ CUSTOM V4 HOOK ↓ STOCK TOKEN PURCHASES ↓ PIGGY BANK ↓ PAY DAY ↓ YUNAS ``` ### **Pool-Level Routing** The custom hook applies only when $WAIFUS is swapped through the configured liquidity pool. Holding $WAIFUS or transferring it between wallets does not trigger the hook. ``` HOLD NO HOOK WALLET TRANSFER NO HOOK POOL SWAP HOOK APPLIES ``` ### **Trading Flywheel** Buy-side and sell-side hook flows route value toward Stock Token purchases. Acquired Stock Tokens enter the Piggy Bank, where they become available for Pay Days.