Hyperliquid-linked organizations are pushing the US Securities and Exchange Commission to modernize how it thinks about trade execution in blockchain-based markets. The immediate ask is the repeal of Rule 611 of Regulation NMS, a long-standing equity market rule that requires orders to seek the best displayed price across registered exchanges.
The bigger issue for crypto investors is not just whether one rule disappears. It is whether US regulators begin building a market structure framework that treats onchain trading as fundamentally different from traditional stock trading.
#Why does Rule 611 matter for onchain markets
Rule 611 was designed for a market built around centralized stock exchanges and consolidated quotes. In US equities, the rule aims to stop trades from being executed at prices worse than those available elsewhere in the market.
That logic becomes harder to apply in decentralized finance. Onchain venues run around the clock, liquidity can shift very quickly, and pricing is not always presented through a single unified quote system. In that setting, a rule built for exchange-based stocks may not map cleanly onto blockchain settlement.
Hyperliquid Policy Center and Douro Labs said in a joint comment letter dated August 17 that the SEC should move ahead with its June proposal to rescind Rule 611. According to the groups, the current framework does not reflect how permissionless markets actually work.
#What are these groups asking the SEC to do next
The request goes beyond eliminating one rule. The groups also want principles-based best-execution guidance tailored to onchain markets.
That matters because execution quality in crypto can depend on more than the headline token price. Investors also face blockchain network fees, known as gas costs, and potential losses from maximal extractable value, or MEV, where block producers or sophisticated traders can reorder transactions in ways that reduce a user’s outcome. Execution certainty and transparency can also vary across protocols.
In practical terms, that means best execution in crypto may need to include total transaction cost, settlement reliability, privacy considerations, and the quality of the reference price used to judge a trade.
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#Why does Pyth and market data matter here
Douro Labs is closely associated with Pyth Network, an onchain data and oracle project. That connection is important because one of the core questions in decentralized trading is how regulators should measure a fair benchmark price when no traditional national quote system exists.
The comment argues that independent and transparent pricing feeds could serve as a better reference point for onchain execution than conventional exchange quotes. If regulators eventually require some form of best-execution reporting for decentralized venues, trusted pricing infrastructure could become a key part of compliance and market oversight.
For retail investors, this is a reminder that crypto market structure is not just about tokens and trading apps. It also depends on the data systems that support pricing, settlement, and transparency.
#What should retail investors watch now
The main point for investors is that this is part of a broader debate over how US crypto regulation will evolve. The SEC proposal discussed here is not a final rule change, and the comment letter reflects the position of participants with clear exposure to the onchain trading ecosystem.
Still, the issue is worth following. If regulators move toward a crypto-specific view of best execution, it could shape how decentralized exchanges, perpetual trading venues, and oracle providers operate in the US. It could also affect trading costs, disclosure standards, and the kinds of protections available to users.
For now, investors should treat this as an early signal in the market structure debate rather than a completed regulatory shift. The direction of travel matters, especially for projects tied to decentralized trading infrastructure and blockchain-based financial services.