Recently, there was a piece of news that didn't create much buzz, but its actual significance might be greater than most people think.

State Street, in partnership with Galaxy and Ondo, is preparing to build an on-chain cash management system on Solana—project code-named "SWEEP."

What does this mean?

To put it simply: Money Market Funds (MMFs) are starting to experiment with on-chain operations, marking the first formal recognition by traditional asset management systems of the operability of on-chain asset management.

**First, let's discuss the background: Who is State Street?**

State Street is not an ordinary player. It is one of the world's three largest custodian banks, managing and safeguarding assets worth over $40 trillion, essentially supporting the foundational infrastructure of the global fund industry. The SPDR series ETFs are also from its portfolio.

This level of institutional choice to partner with Ondo itself is a signal:
The core node of traditional financial custody has publicly acknowledged the compliance and practicality of on-chain asset management frameworks for the first time.

**Next, what exactly does SWEEP aim to do?**

The core logic can be understood as:
On-chain liquidity pools → Automatic allocation to asset portfolios → Portfolio mainly composed of US Treasuries and other RWA (Real-World Assets) → Providing 24/7 liquidity management

In other words, this is an institutional "on-chain Yu'e Bao" prototype—only with more hardcore underlying assets, more automated liquidity management, and theoretically higher settlement efficiency.

The key point is:
This is not an experiment by a DeFi protocol, but a move by traditional financial infrastructure actively participating in on-chain ecosystem development.

The RWA track is moving from concept validation towards practical implementation. The fact that Solana was chosen as the platform also indirectly confirms its technological adaptability for institutional-grade applications.