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Analyzing HIP-4: Hyperliquid and Kalshi Join Forces to Reshape the on-chain prediction market
Recently, Hyperliquid has been very active, first allowing anyone to create perpetual contract markets with HIP-3, then sparking heated discussions with the stablecoin bidding, and now, they have put forward a major proposal—HIP-4, preparing to officially enter the prediction market.
This is not just about adding a new feature; behind it is Hyperliquid's grand ambition to evolve from a simple perpetual contract exchange to a more foundational and modular financial infrastructure. Let's take a closer look at what HIP-4 is, what it aims to do, and how it will disrupt the landscape of prediction markets.
Hyperliquid partners with Kalshi
Hyperliquid has already become the absolute king in the on-chain perpetual contract field, capturing nearly 80% of the market share. However, for any successful project, there is always a need to seek new growth points. HIP-4 is the key step they have taken.
One of the most interesting points of the HIP-4 proposal is that one of its authors, John Wang, comes from Kalshi—a centralized prediction market that is strictly regulated by the CFTC in the United States. In August 2025, Kalshi prominently hired Crypto KOL John Wang as its Head of Crypto. The author lineup of HIP-4, which spans decentralized investment institutions and centralized prediction market practitioners, is quite intriguing, as it is rare for traditional competitors to collaboratively draft proposals. As an important player in the compliant prediction market in the United States, Kalshi's participation in drafting HIP-4 suggests that the proposal is not intended to "disrupt" existing players in the prediction market space, but rather reflects a mindset of collaboration or differentiated coexistence.
The two are a perfect match. Kalshi can leverage Hyperliquid's technical infrastructure to efficiently enter the decentralized world and reach global users; while Hyperliquid, through its collaboration with Kalshi, gains valuable compliance, credibility endorsement, and professional market operators, avoiding the early emergence of a large number of low-quality markets.
Structural Innovation: Why Do We Need Specialized "Event Perpetual Contracts"?
You may ask, since HIP-3 already allows users to create perpetual contracts "permissionlessly", why can't it be used directly to create prediction markets? The answer is: technically it doesn't work.
Standard perpetual contract's "incompatibility"
Standard perpetual contracts have two core mechanisms that make them unsuitable for prediction markets:
Customizing the 'Event Perpetual Contract'
To address these issues, HIP-4 introduces a brand new product: "event perpetual contract", which makes several key innovations:
Comparative Analysis: HIP-4 vs. Polymarket
Entering the prediction market, Hyperliquid inevitably has to compete with the current leader Polymarket. However, Hyperliquid has chosen not to imitate, but instead has taken a distinctly different differentiated path.
Elite Curation vs. Laissez-faire
This is the core difference between the two.
Value Capture by Protocol vs. User Experience First
In simple terms, Polymarket follows the typical Web2 growth strategy - burning money to gain market share, while Hyperliquid has been committed to building a crypto-native, sustainable economy since day one.
Unleash Potential: Advanced Gameplay of 1+1+1 > 3
By placing various financial instruments under the same account and margin system, the operational complexity and capital friction for traders are greatly reduced. Traders can seamlessly move funds and risk exposure between different products, allowing them to build more refined and efficient portfolios. This composability is a core advantage of Hyperliquid compared to specialized prediction market platforms.
Strategy 1: Hedge Event-Driven Volatility Risk
This is one of the most intuitive application scenarios, using prediction markets as a precise tool to hedge against the risks of specific events.
Strategy 2: Basis Trading between Perpetual Contracts and Prediction Markets
For more experienced quantitative traders, the unified platform provides opportunities for cross-market arbitrage and relative value trading.
Scenario: The theme of a perpetual contract market for an event is: "Will the ETH/BTC exchange rate be higher than 0.06 by the end of the month?", and the current price of the "Yes" (YES) contract is $0.70, which implies a 70% probability of occurrence as implied by the market. Meanwhile, the ETH/USD and BTC/USD perpetual contract markets on the platform are also trading normally.
Strategy on Hyperliquid: A quantitative analyst determines through his model that the real probability of the ETH/BTC exchange rate being above 0.06 at the end of the month is only 60%, and he believes that the market pricing of this event (70%) is too high. He can construct a relative value trade to capture this 10% "probability spread":
Profit Source: Through the above operations, the trader maintains a neutral position on the actual exchange rate trend of ETH/BTC, but he short sells the market's "event premium" or "implied probability". As long as the price of the prediction market eventually converges towards what he considers a more reasonable 60% probability, or the event ultimately does not occur (price goes to zero), he can profit from it. The essence of this strategy is trading the difference between "views" and "market consensus".
sings against HIP-4
The prospects for HIP-4 are bright, but it is not without its challenges, as it still faces several key obstacles.
Fee Paradox
As mentioned earlier, Polymarket currently does not charge any fees. This has previously been explained as Polymarket attracting users through a "free" strategy, but in reality, there are deeper considerations behind this. This is because in a prediction market, the price of an option theoretically represents the market's perception of the probability that this option will come true in the end. Introducing transaction fees introduces trading friction, causing the option price to deviate from the market's predicted probability. One of the main functions of a prediction market is to reflect the market's predictions about the future through intuitive prices, and after introducing transaction fees, this function is greatly weakened.
For example, ideally, the sum of the probabilities of Yes and No should be 100%. Polymarket has no fees and introduces constraints on the prices of YES token and NO token through an arbitrage mechanism, making the above conclusion valid. In most cases, the sum of the prices of YES token and NO token in Polymarket can be very close to 1.
However, the prediction market in HIP-4 is obtained by market builders through staking 1 million HYPE (currently valued at approximately 58 million USD) for the "privileged operating rights", the purpose of which is to earn 50% of the transaction fee revenue. This will inevitably affect user trading behavior, causing the prices in HIP-4 to deviate from the predicted probabilities in the market.
For example, due to transaction costs, the sum of Yes and No in the Hyperliquid market may be less than $1 (buying one Yes and one No requires paying double fees). Although the fees are small, a significant trading dead zone may appear when liquidity is insufficient. For instance, if the true probability in a market is 50%, the prices of YES and No options on Polymarket align with 0.50, but on Hyperliquid, it might be Yes=0.48 and No=0.49, summing up to only 0.97. The 0.03 difference implies a 3% cut for the bookmaker. This is detrimental to the accuracy of price discovery and harms user experience.
Add constraints to the price
As mentioned earlier, for the prediction market, the core mechanism is how to ensure that the sum of the probabilities of the two outcomes, YES and NO, always equals 100%, which is equivalent to ensuring that the sum of the prices of the Yes token and the No token equals 1.
The cornerstone of Polymarket's implementation of this mechanism is through an arbitrage system:
However, in the proposal for HIP-4, there is no similar content, and we cannot know how HIP-4 will constrain the prices of YES token and NO token. Moreover, the prediction market in HIP-4 is likely to charge fees, which adds many uncertainties to the extent to which the option prices in HIP-4 can reflect market expectations.
Current mechanism limits collaborative potential
Some readers may be excited about the author's beautiful vision of "Spot, Futures, Prediction: 1+1+1>3" described in the previous chapter. Unfortunately, the author has to pour a bucket of cold water here: under the current Hyperliquid "margin" system, although Hyperliquid supports Cross-Margin within the perpetual market, the three major product lines of spot, futures, and future predictions are still isolated from each other, and the aforementioned synergy advantage of "1+1+1>3" cannot be realized at all.
This means that although the three types of products are on the same platform on the surface, users still need to manage their positions and funds separately.
Such an isolation design can be understood in the early stage for the sake of robustness, but it also limits the power of cross-market synergy strategies. If users want to hedge contract positions using the prediction market, they must constantly manually adjust the funds in the two accounts, which is cumbersome and has delays. It can be seen that there are still many basic functions within Hyperliquid that need to be improved. Before fully realizing the integration of the three major product lines, the synergistic effects brought by the prediction market business will be discounted.
low profit, few people, many tasks
In summary, even if HIP-4 is approved, its actual launch time is likely to be after 2026, falling under mid to long-term planning. For Kalshi, which is eager to expand onto the chain, this is like "distant water cannot quench present thirst"; in the short term, they still cannot meet the demand for decentralized markets through HIP-4. Correspondingly, Polymarket's position remains solid in the foreseeable future, and it will not feel a direct threat from Hyperliquid at least until next year. By the time HIP-4's prediction market products mature, Polymarket may have further expanded its leading advantage or launched its own token to form a new moat.
Conclusion: A carefully planned game.
In summary, HIP-4 is a "strong alliance" between the centralized prediction market giant Kalshi and the DEX giant Hyperliquid.
The success or failure of this game will depend on whether Hyperliquid can leverage its technological advantages and high-quality experience to overcome the inherent challenges of fragmented liquidity and high costs. If successful, it will not only open up a huge new market for itself but also set an example for the entire industry: how DeFi protocols can transition from single applications to platformization, and how traditional financial institutions can integrate with the decentralized world. The market will be the final arbiter of this experiment.