1/ Last episode, we said that once collateral, leverage, securities borrowing, and liquidation are on-chain, together they start to look like an on-chain prime brokerage business.
This time, let's ask it differently: Will it really emerge? The answer is: It's already emerging, just not in the way most people imagine. Not “smart contracts replacing prime brokers,” but “prime brokers using smart contracts as their execution layer.”
2/ The key case study: Ripple Prime × Hyperliquid
Ripple acquired established prime broker Hidden Road for $1.25 billion and renamed it Ripple Prime, reportedly with an annual clearing volume of over $3 trillion. On February 4 this year, Ripple Prime announced its integration with Hyperliquid, allowing institutional clients to access on-chain perpetuals liquidity through the same PB interface and combine these DeFi positions with FX, fixed income, OTC swaps, and cleared derivatives under portfolio margin.
In other words, a hedge fund can hold perpetual positions on Hyperliquid while using its own Treasury portfolio to provide margin for them.
3/ Pay attention to the structure: Trading is on-chain; credit is off-chain
In this model, Ripple Prime remains the client’s contractual counterparty, and positions traded on-chain are included in its unified margin and risk framework for review. Some analysts say this approach reduces legal and operational ambiguity for large institutions, but it also shifts where systemic risk accumulates.
This detail matters. The truly irreplaceable value of a prime broker has never been just “the ability to place orders and borrow money.” It lies in a single-counterparty relationship, cross-asset portfolio margining, and a legal entity that can be sued and regulated. Smart contracts can replicate execution and clearing, but not this layer.
4/ So the endgame is more likely to involve three approaches running in parallel
① Hybrid model: A licensed PB acts as the counterparty, while on-chain venues provide the execution layer (Ripple Prime and FalconX, mentioned last time)
② Institutional infrastructure model: Regulated networks like DTCC and Canton use tokenized Treasuries directly for intraday securities lending and margin settlement
③ DeFi-native assembly model: Funds piece together lending protocols, DEXs, and custody solutions into a “Lego-style” PB
The first two approaches share one feature: the plumbing is moving on-chain, while licensed institutions remain the counterparties.
5/ If everything moves on-chain, what improves and what gets worse?
What improves: Margin rules are enforced by contracts, margin calls and liquidations are automated, and collateral positions are transparent—reducing opaque rehypothecation and undisclosed lending to related parties.
What gets worse: Atomic settlement eliminates the multi-day settlement window, but also removes the buffer provided by batch netting; automated liquidations leave no room for negotiation and can trigger cascading sell-offs in extreme market conditions. And while on-chain lending markets are deep for some assets, they are thin for others—the depth is not yet sufficient to support a large ledger of diversified assets.
6/ Back to the four-coin framework
• $HYPE: It has been integrated as an execution layer by institutional PBs like Ripple Prime. Its monthly trading volume reportedly once exceeded $200 billion, with open interest topping $5 billion. It is more like a “venue used by prime brokers” than a PB itself.
• $ONDO: Market analysis has already mentioned its vision for RWA prime brokerage. Its current role is as a “supplier of eligible collateral”; whether it can also become a collateral management layer remains to be seen.
• $LINK: Cross-asset portfolio margining depends heavily on consistent, trusted valuation inputs—the “eyes” of the risk engine.
• $UNI: Once liquidation is triggered, collateral needs to be sellable. Spot market depth determines whether liquidation proceeds smoothly or causes a secondary shock.
7/ Risk warning: Examples like Ripple Prime represent hybrid institutional models and do not mean that disintermediated on-chain PBs are mature. Combining on-chain execution with centralized prime brokers may concentrate risk at the PB layer. Much of the relevant data comes from company disclosures or media reports; please refer to official sources.
This is purely an analysis of industry structure and does not constitute investment advice. DYOR. See you next time on “Kelly’s Four-Coin Radar.”