> For the complete documentation index, see [llms.txt](https://stackpro.gitbook.io/stackpro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://stackpro.gitbook.io/stackpro/spro-token/spro-insurance-fund-sif.md).

# SPRO Insurance Fund (SIF)

* SIF is the acronym for the StackPro Insurance Fund which is a separate wallet in StackPro’s Ecosystem. The SIF uses an algorithm that backs the Rebase Rewards and is supported by a portion of the buy and sell trading fees that accrue in the SIF wallet.
* In simple terms, the staking rewards (rebase rewards) which are distributed every hour at a rate of 0.02355% are backed by the SIF parameter, thus ensuring a high and stable interest rate to $SPRO token holders.
* 5% of all trading fees are stored in the StackPro Insurance Fund which helps sustain and back the staking rewards provided by the positive rebase.

#### SIF Keeps holders safe by:

* [x] Avoiding flash crash through price stability
* [x] Achieving long term sustainability and future growth of the StackPro Protocol
* [x] Reduce the risk for the $SPRO token holders.

**SIF Address:** 0x0738aEe3c16736b993477227025C861CFAf48A0F

####