📐ParaSwap SRB

Learn how ParaSwap staking rewards are calculated. PSPSRB formula covers predicted protocol fees, reward share, epoch duration, and staked PSP value.

PSPSRB is a benchmark that represents the annualized staking rate for the PSP token. Due to the tokenomics of this token, its value is determined by the reward rate of the most popular reward option, which holds more than the supermajority of the locked tokens.

PSPSRB is calculated and published by Staking Rewards via the PSP Profile and Data API.

PSP staking rewards have ended — PSPSRB is 0.

ParaSwap rebranded to Velora and migrated PSP to the VLR token in September 2025, which retired PSP's staking and governance utility. The last protocol-fee distribution to sePSP1/sePSP2 stakers was Epoch 37 (November 2025); epochs 38–40 distributed nothing and there has been no payout since.

PSPSRB, the reward option reward rates, fee revenue, and all paraboost-derived calculator figures are therefore published as 0 — a measured zero, not missing data. The formulas below are retained as a record of how the benchmark was computed while rewards were being distributed.

Staked tokens, staking wallets, supply, price, and TVL continue to be tracked: the sePSP1 and sePSP2 contracts still exist on Ethereum and Optimism and still hold stake.

TL;DR: ParaSwap staking rewards came from protocol fees collected during each 28-day epoch. The reward rate equalled predicted rewards times reward share, divided by investment value, and annualized. That distribution has since stopped, so the rate is now 0.

$$PSPSRB = (pr * rs)/ iv * t_y / t_e$$

Formula key	Metric name	Description
$pr$	Predicted Rewards	The prediction of all fees collected on the protocol during the current epoch. Predicted rewards are influenced by individual reward shares.
$rs$	Reward Share	The adjusted share of the reward option.
$iv$	Investment Value	The value deposited.
$t_y$	Year Constant	365d
$t_e$	Epoch Constant	28d

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Paraboost Score:

The paraboost score is a multiplier that represents your share of the reward distribution when compared to the total paraboost score of all stakers.

$paraboostScore = tokenScore * myBoost$

$myBoost = tb1 * tb2 * mb * pb * bb * rb1 * rb2$

$tokenScore = sePSP1 + 2.5 * sePSP2$

Metric	Boost name	Description
sePSP1 $f(x) = x * e^{2 pi i \xi x}$		The amount of staked PSP in the basic pool.
sePSP2		The amount of staked PSP in the boosted pool.
tb1	General Trading Boost	The more volume a user trades through ParaSwap, the bigger the boost.
tb2	Trading Boost Stable to Stable	Stablecoin to stablecoin trades provide different boost values. Harder to collect fees (less spread).
mb	Market Making Boost	Market makers, including limit orders participants, OTC, and RFQ (PMMs), are eligible for stake boost depending on filled orders volume.
pb	Pooling Boost	Liquidity provision through sePSP2 for the time an asset is kept without requesting a withdrawal. A minimum amount of 10k sePSP2 amount is required for it to be counted for the boost. The boost will be calculated using averages of the stake, and triggering an unstake request will reset the boost timer
bb	Balance Booster	Holders of a minimum of $100 worth of PSP in the user’s wallet on a single chain receive a 10% boost.
rb1	Referrer Boost	Trades made using a referral link will provide a 20% boost to the referrer.
rb2	Referral Boost	Trades made using a referral link will provide will receive a 10% boost on applicable trades.
(migration boost)	Migration boost	Boost bonus from migrating from PSP to PSP 2.0. (Not to be included in the calculator)

Boost values where none were presented:

tb1
tb2
mb
pb

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Revenue Share

$myRevenueShare = ps / ( tp + ps)$

Metric	Name	Description
ps	My Paraboost Score	The paraboost score for the current epoch.
tp	Total Paraboost	The total paraboost score from all staking users.

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Final APR adjusted to user input

We derive this formula from the starting formula and the revenue share:

$myBasicPoolAPR = pr * (userInput * pb) * ((plp1 +userInput) / (plp1 + userInput + 2.5 * plp2)/ (userInput * price) * t1 / e1$

$myBasicPoolAPR = pr * (2.5 * userInput * pb) * (2.5 * (plp2 +userInput) / (plp1 + 2.5 * (plp2 + userInput)/ (userInput * price / 0.8) * t1 / e1$

Formula key	Metric name	Description
pr	Predicted Rewards	The prediction of all fees collected on the protocol during the current epoch. Formula: Current epoch accrued revenue valued in USD at the moment of accrual + ( % remaining of the epoch * average of last 3 epoch's revenue)
rs	User Revenue Share	The user's revenue share.
userInput	User Input	Amount of tokens the user is willing to stake.
price	Price	The current price of the asset.
plp1	PSP in Basic Pool.	Amount of tokens locked on the basic pool reward option.
plp2	PSP in Boosted Pool	Amount of tokens locked on the boosted pool reward option.
t1	Days Constant	365d
e1	Epochs Constant	28d

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Staked Tokens

Staked tokens are read directly from the staking contracts on both Ethereum and Optimism.

sePSP1 holds raw PSP, so its staked amount is simply the PSP token balance of the sePSP1 contract.

sePSP2 does not hold raw PSP — it holds Balancer 80PSP/20WETH pool tokens (BPT). Its PSP leg is derived from the pool position:

$$pspStaked_{sePSP2} = bpt_{sePSP2} / bpt_{total} * psp_{vault}$$

Formula key	Metric name	Description
$bpt_{sePSP2}$	Pool Tokens Held	Balancer pool tokens held by the sePSP2 contract.
$bpt_{total}$	Pool Token Supply	Total supply of the Balancer 80PSP/20WETH pool token.
$psp_{vault}$	PSP in Pool	PSP held by the Balancer Vault for that pool.

Asset-level staked tokens are the sum of all four positions: sePSP1 and sePSP2 on Ethereum and on Optimism.

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Limitations

• Reward-side metrics are 0 because rewards ended, not because they are unavailable. See the notice at the top.

• The paraboost score, revenue share, and the calculator's APR-by-user-input figures are no longer computed; the ParaSwap Metabase dashboard that supplied paraboost totals has returned 0 for every epoch from 41 onward.

• Staked tokens for sePSP2 count only the PSP leg of the Balancer position. The paired WETH leg is excluded, consistent with how the metric has always been reported.

• Staking wallet counts are per-contract delegation counts, not unique addresses; a wallet staked in both pools is counted in both.

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Data Sources:

• Ethereum and Optimism RPC Endpoints (staked tokens: PSP balances, Balancer pool token supply and vault balances, lockup duration, total supply, pool weights, sePSP1/sePSP2 vault share supply)

• Indexed Ethereum and Optimism Data via Dune Analytics (staking wallet counts)

• CoinGecko (PSP price, circulating supply)

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References:

• Velora (formerly ParaSwap) — PSP to VLR migration

• What is PSP 2.0

• How is the ParaBoost Calculated?

• What is the ParaBoost Share?

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📚 Learn more about PSP Staking

📊 Calculate your PSP Staking Rewards

⚙️ Access historic ParaSwap Staking Data via API

Last updated on 08/19/2026