📚Stacks SRB

Learn how Stacks stacking rewards are calculated. STXSRB formula covers BTC spent per cycle, stacked STX value, and Bitcoin-denominated yield.

STXSRB is a benchmark representing the mean, annualized staking rate across all active Stacks stacking methods.

STXSRB is calculated and published by Staking Rewards via the Stacks Profile and Data API.

TL;DR: Stacks stacking rewards come from Bitcoin spent by miners in each stacking cycle. The reward rate equals the BTC value spent per cycle divided by total stacked STX value in USD.

STX Staking Rewards Rate: STXSRB

$$STXSRB = sr / st$$

Formula key	Metric name	Description
sr	Stacking Rewards	The amount of BTC spent in a cycle.
st	Stacked Tokens	The amount of stacked STX in USD.

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STX Staking Reward Rate: STXSRB(v)

Staking Rewards calculates the STXSRB for each validator based on their individual commission and if delegations are accepted.

$$STXSRB(v) = STXSRB *(1-cr)$$

Formula key	Metric name	Description
cr	Commission Rate	The percentage commission rate the validator has set as a delegation fee for all delegators.

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STX Real Reward Rate: STXSRB^R

The real reward rate calculates the STXSRB adjusted for inflation in the network.

$$STXSRB^R=1 + STXSRB/(1+ir) -1$$

Formula key	Metric name	Description
ir	Inflation Rate	New STX entering the circulation supply.

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Data Sources:

• Stacking Tracker API - signer/pool staking data and per-cycle APY

• Hiro Stacks API - supply data (/v2/pox), block timestamps, PoX cycle information

• CoinGecko - price data

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References:

• Stacks Docs

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📚 Learn more about Stacks Staking

⚙️ Access historic Stacks Staking Data via API

Last updated on 04/17/2026