Bitwise's Onchain Solutions validator attracted 1.27 million SOL in net staking inflows during August, lifting it to the position of fifth-largest validator on the Solana network. The inflows raised the validator's total active stake to approximately 9.455 million SOL, up from around 8.3 million SOL in mid-July, when it ranked sixth.

The bulk of that growth stems from a single product: Bitwise's BSOL ETF, which stakes nearly all of its Solana holdings through the same validator. By late August, the fund had crossed $1 billion in assets under management, making it the first Solana ETF to reach that milestone. The milestone reflects how quickly staking-enabled spot crypto ETFs have scaled since US regulators began permitting spot Solana funds to stake part of their holdings, a structure that lets fund shareholders capture network yield that would otherwise go unrealized.

BSOL's dominance in the Solana ETF race

The BSOL ETF launched on October 28, 2025, with a simple proposition: gain exposure to SOL while earning staking yield on top of it. The fund targets 100% staking of its holdings, and roughly 96% of its 9.33 million SOL is actively staked at a net yield of approximately 5.8% after fees.

Since launch, BSOL has captured between 77% and 80% of all US spot Solana ETF inflows. On August 27 alone, the fund recorded $60.91 million in single-day inflows, its highest for the month. Across the entire category, total inflows into US spot Solana ETFs have exceeded $1.3 billion since the products debuted.

How Bitwise built the infrastructure

Bitwise acquired Chorus One in February 2026, a transaction that significantly expanded its staking operations across multiple blockchain networks. Chorus One contributed established infrastructure and operational expertise in running validators at scale, providing Bitwise with the backbone to absorb the delegation growth that followed. The acquisition is part of a broader trend of asset managers bringing staking infrastructure in-house rather than relying on third-party operators, giving them direct control over validator performance, slashing risk, and fee capture.

The rise from 8.3 million to 9.455 million SOL in active stake over roughly six weeks represents a 14% increase.

A shrinking validator set raises concentration questions

The number of active validators on the Solana network has fallen approximately 34% year-over-year, a decline driven primarily by rising operational costs that make running nodes uneconomical for smaller operators. That contraction makes the growth of institutionally backed validators like Bitwise's a larger share of a smaller set, a dynamic that network participants monitor as a measure of how decentralized Solana's consensus remains in practice.

Solana's roughly 46% price appreciation during August served as a tailwind that amplified the dollar value of the staking inflows.