The rkuSOL Liquid Staking Token (LST) allocates SOL to validators running the Raiku validator client. Stakers receive a share of validator earnings proportional to their stakeweight, while holding a liquid token they can use across DeFi rather than locking capital in a fixed staking position.

What sets rkuSOL apart is the earnings base behind it. Validators earn by processing Raiku's Ahead-Of-Time (AOT) and Just-In-Time (JIT) transaction types, in addition to standard MEV and network rewards. AOT lets users reserve a guaranteed inclusion slot ahead of time for precision-critical operations. JIT runs a first-price sealed-bid auction where the highest bidder secures a guaranteed slot at the moment of block production.

Developers, traders, and institutions bid for guaranteed inclusion, and those auction proceeds flow back to validators and ultimately to stakers. Blockster

This adds a revenue line that ordinary liquid staking tokens do not capture. A conventional LST earns from inflation rewards and, at best, MEV. rkuSOL stacks coordination-auction revenue on top, making it Solana's first liquid staking token tied not only to staking rewards and MEV, but also to revenue generated by the validator's coordination activity.