> For the complete documentation index, see [llms.txt](https://docs.growthdefi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.growthdefi.com/wheat/wheat-vaults-v2.md).
# 4.1 WHEAT Vaults (stkTokens V2)
*Wheat Contract Address (BSC): 0x3ab63309f85df5d4c3351ff8eacb87980e05da4e*
Wheat is the incentive token of the ecosystem, including Growth DeFi’s yield optimizer of the same name. Buyback and burn mechanics are implemented through performance fees on stkTokens in combination with fee collectors. This will eventually make WHEAT deflationary over time.
stkTokens are tokenized yield farming positions in different protocols such as ApeSwap and PancakeSwap.
The standard performance fee for stkTokens is 5% of the token it is yield farming. In the case of ApeSwap and PancakeSwap strategies, these fees go to the respective fee collectors.
There are no deposit or withdrawal fees in stkTokens V2. They are used as ilks for MOR, and having deposit/withdrawal fees would only add friction.
stkTokens have been audited by ConsenSys Diligence, you can [*read the audit report here*](https://consensys.net/diligence/audits/2021/06/growthdefi-wheat/)*.*
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