What is rkuSOL? Raiku's liquid staking token, issued via Sanctum
In June 2026 we launched rkuSOL with Sanctum, Kamino, Loopscale and Exponent.
rkuSOL is Raiku's liquid staking token (LST) on Solana. When you stake SOL through the rkuSOL stake pool, you receive rkuSOL in exchange. The underlying SOL is delegated to validators running Raiku's client, and rkuSOL accrues Solana staking rewards and MEV tips over time. Rewards vary with validator performance and network conditions, and they aren't fixed.
Because rkuSOL is a token, you can hold it, transfer it, swap it, or use it in other Solana apps while the underlying SOL stays staked. It is issued via Sanctum.
rkuSOL isn't offered to Restricted Persons under our Terms of Use, including anyone resident in the UK, China, Japan or South Korea, and this post is not directed at them (see below).
How rkuSOL works
rkuSOL behaves like other Solana liquid staking tokens. You deposit SOL into the stake pool and receive rkuSOL at the prevailing exchange rate. Over time, the exchange rate reflects Solana staking rewards and MEV tips accrued by the underlying validators. There is no supply cap. The underlying stake pool and the Sanctum LST contracts are standard Solana primitives.
Raiku intends to use revenue from Blackline or other corporate resources to fund additional rewards for eligible stakers or rkuSOL holders. That programme isn't live and may not launch. Any such rewards would be separate from staking rewards, wouldn't be guaranteed and could be zero. Holding rkuSOL doesn't give a right to a share of Raiku or Blackline revenue.
Sanctum provides the LST infrastructure. From launch, rkuSOL has been available through Sanctum's tooling and liquidity routes, with further DeFi integrations listed on https://raiku.com/stake and https://stake.raiku.com/.
Validators running Raiku's client
The SOL behind rkuSOL is delegated to a set of validators running Raiku's client, which may include validators operated by Raiku and by independent operators. Staking rewards depend on how those validators perform. Holding rkuSOL doesn't give access to Blackline or a share of its revenue.
Launch partners
At launch, rkuSOL was integrated with:
- Sanctum — LST issuance and infrastructure
- Kamino — available as collateral on Kamino's lending markets
- Loopscale — supported across Loopscale's fixed-rate credit markets
- Exponent — listed on Exponent's platform
- Phantom and Jupiter — supported for hold, transfer, and swap from launch
Additional DeFi integrations have followed, including Jupiter Lend (rkuSOL as collateral to borrow USDC). Always check the live app for current markets and parameters.
Who can't use rkuSOL?
Under Section 4 of our Terms of Use, Restricted Persons must not access or use rkuSOL Materials, including this post and stake.raiku.com. Restricted Persons include anyone resident or located in the United Kingdom, China, Japan, South Korea, Syria or a comprehensively sanctioned jurisdiction (such as North Korea, Iran, Cuba, Crimea, Donetsk or Luhansk), and anyone subject to sanctions. Section 4 sets out the full definition.
Read the full Raiku Risk Disclosure before using rkuSOL: https://raiku.com/disclosures
Where to find rkuSOL
Eligible users can mint or hold rkuSOL via https://stake.raiku.com/ and Sanctum. Compare current integrations on https://raiku.com/stake.
Leigon Ltd (Raiku) issues rkuSOL. Third-party apps (Sanctum, Kamino, Loopscale, Exponent, Jupiter, Phantom, and others) are independent services that Raiku does not control.