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stFlow token

What is $stFlow?

$stFlow is a fungible token on Flow blockchain that represents a share of the total $flow tokens staked through liquid staking protocol, along with any generated staking rewards.
User will receive $stFlow tokens after staking $flow tokens in LSP (liquid staking protocol). As a kind of staking receipt, user can exchange $flow tokens and the earned rewards back through burning $stFlow.
The minting of $stFlow only happens when new staking occurs in LSP.

How is $stFlow quoted?

The latest $stFlow/$Flow price can be queried by protocol interface:
// 9.9913 &stFlow -> 10.0000 $flow
LiquidStaking.calcStFlowFromFlow(flowAmount: UFix64)
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// 10.0000 $flow -> 9.9913 &stFlow
LiquidStaking.calcFlowFromStFlow(stFlowAmount: UFix64)
At the beginning of each new epoch, $stFlow price will be recalculated and this quote will not change during the whole epoch period.
The quotation of $stFlow is:
It is not difficult to find that the price of $stFlow will continue to increase as new staking rewards accrued. At the epoch of creation, the price of 1 $stFlow is equal to 1 $flow.
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Assume that the Apr of staking is 8%, and the reward is issued according to the $flow total staked:
The price change of $stFlow over one year can be plotted:​
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