Polymarket launches native stablecoin: accelerating the DeFi transformation of prediction markets

On April 6, 2026, Polymarket, the world’s largest on-chain prediction market, announced the launch of the largest infrastructure upgrade since it went live. The core components of this upgrade include the launch of the native stablecoin Polymarket USD, the restructuring of the trading engine CTF Exchange V2, and the introduction of support for the EIP-1271 standard. This series of technical changes not only means that Polymarket has achieved fully autonomous control over the asset layer at the settlement level, but also signals that the prediction market track is accelerating its transition from an event-driven information-competition tool to a DeFi segment with complete financial infrastructure characteristics. This article will systematically deconstruct this upgrade across six dimensions: the event background, technical details, data performance, divergences in public sentiment, regulatory pressure, and future scenario projection.

Largest-Scale Upgrade Launched: Native Stablecoin Goes Live

On April 6, 2026, Polymarket announced via its official social media that it will upgrade the entire exchange technology stack comprehensively within the next two to three weeks. The platform calls this upgrade “the largest infrastructure change since it went live.” The upgrade covers three core layers:

• Asset layer: Launch the native stablecoin Polymarket USD, fully backed at a 1:1 ratio by USDC, gradually replacing the currently used bridged version USDC.e.
• Trading engine layer: Launch the CTF Exchange V2 smart contract system, rebuild the order-matching logic, optimize the order data structure, reduce Gas consumption, and introduce an upgraded Central Limit Order Book (CLOB), adopting a hybrid architecture of off-chain matching and on-chain settlement.
• Compatibility layer: Add support for the EIP-1271 standard, allowing smart contract wallets and multisig wallets to interact directly with the platform.

During the upgrade period, the existing order book will be cleared, and the platform will enter a short maintenance window. The specific maintenance time will be announced at least one week in advance. Polymarket said that this upgrade comes at a key time when the platform’s user base continues to grow and market competition is intensifying.

The Six-Month Path from ICE Investment to CTF V2

This upgrade is not an isolated technical event, but a continuation of a series of strategic deployments by Polymarket since the second half of 2025. The following are key time points:

From this timeline, it can be seen that over the past six months, Polymarket completed a full closed loop from regulatory entry, funding injections, to rebuilding technical infrastructure. In this process, ICE’s strategic investment played a key role. The $1 billion investment in October 2025 established ICE’s position as a global distributor of event-driven data for Polymarket. The additional $600 million investment in March 2026 further pushed total commitments to nearly $2 billion. At the same time, in February 2026, ICE launched the Polymarket Signals and Sentiment Tool, standardizing the crowdsourced probability data of prediction markets into an institutional-grade structured data stream for professional traders.

ICE’s continued capital infusions indicate that operators of traditional financial market infrastructure are treating prediction markets as an independent financial category alongside stocks, futures, and fixed income—not a short-term speculative tool. This judgment provides strategic rationale for Polymarket’s technical upgrade beyond the financial layer.

The Track’s Breakout Behind $10 Billion Monthly Trading Volume

The prediction market track experienced explosive growth between 2025 and 2026. According to statistics from Dune Analytics:

• In March 2026, seven tracked prediction market platforms combined achieved $25.7 billion in nominal trading volume, the second-highest level in about two years.
• Of that, Polymarket contributed about $10 billion, and Kalshi contributed about $13 billion. Together, the two account for about $23 billion in nominal trading volume.
• The total number of trades across all tracked prediction markets reached about 207 million in March, higher than about 155 million in February.
• As of the time of writing, the overall open interest in the prediction market space is about $940 million. Of that, Kalshi is about $487 million and Polymarket is about $422 million; together they account for the vast majority of the share.

Since the beginning of 2024, the monthly trading volume in prediction markets has grown by 130x, becoming one of the fastest-growing categories in the financial sector. Polymarket set a record in March 2026 with $38569039.7T in monthly trading volume. Its trading volume is mainly driven by political events, followed by cryptocurrencies, sports events, and global macro events.

Technical Breakdown: Order Book Restructuring, Gas Optimization, and EIP-1271

The technical changes of CTF Exchange V2 can be broken down across the following dimensions:

• Order structure optimization: The new version simplifies the order data structure, reducing the number of fields required per order, directly lowering the on-chain settlement data payload. It is expected that this optimization will significantly reduce the average Gas cost per trade, but the exact reduction needs to be validated with real-world measurements after launch.
• Matching engine restructuring: V2 reduces the number of on-chain operations required for order validation and matching, while also introducing an upgraded Central Limit Order Book. After completing order matching off-chain, it executes on-chain settlement. This hybrid architecture balances matching efficiency with the security of decentralized settlement.
• EIP-1271 support: This standard allows smart contract wallets (such as Safe multisig wallets) to sign orders directly without routing through an external account. It is expected that this change will significantly lower the entry barrier for institutional participants, enabling professional trading teams to access Polymarket liquidity in a more compliant and efficient way.

Polymarket USD is not a tradable or speculative asset. Its function is similar to a stablecoin wrapper designed specifically for the platform, backed 1:1 by USDC and issued directly by Polymarket. After ordinary users complete a one-time authorization via the platform front end, funds are automatically wrapped into Polymarket USD. Advanced users and API traders need to manually call the wrap function of the Collateral Onramp contract to complete the conversion.

Long vs. Short Clash: Mainstream Market Views and Core Disputes

Around this upgrade, market participants have formed multiple layers of views and judgments. The following summarizes these by participant type:

Mainstream Positive Views

• Infrastructure improvement perspective: Supporters believe the launch of Polymarket USD frees the platform entirely from structural dependence on bridged assets. USDC.e is the bridged version on Polygon, and its security relies on the stable operation of cross-chain bridges. Any bridged vulnerability could directly affect the platform’s ability to make settlement. The introduction of a native stablecoin removes this systemic risk.
• Institutionalization transition perspective: ICE’s continuous investments and the introduction of EIP-1271 are seen as key signals of Polymarket’s transition toward a regulated, institution-grade trading venue. The ability for multisig wallets to interact directly reduces technical friction in compliance custody and risk-control processes. It is expected to attract more hedge funds and proprietary trading teams into the prediction market space.
• Governance token expectation perspective: Polymarket has previously confirmed it will launch the POLY governance token. Some market participants speculate that this technical upgrade may be necessary infrastructure preparation ahead of the issuance of POLY. Once the governance mechanism is implemented after the upgrade, the rollout is expected to accelerate.

Questions and Reservations

• Centralization level controversy: Some have pointed out that Polymarket USD is issued and managed by the platform itself. Even though it is backed 1:1 by USDC, its wrap and unwrap processes are fully controlled by Polymarket. This creates some tension with DeFi’s “trustless” principle. The platform’s direct control over the settlement layer improves operational efficiency, while also increasing single-point risk.
• Airdrop expectation uncertainty: Although the POLY token has been officially confirmed, the specific issuance timing, allocation rules, and total supply have not yet been announced. Some high-frequency trading users are concerned that clearing the order book during this upgrade may affect their historical trade records, thereby creating uncertainty in how the airdrop will be allocated.
• Competitive landscape pressure: The prediction market track is not a one-horse show for Polymarket. Kalshi completed more than $1 billion in funding with a valuation of about $22 billion, expects annual revenue of $1.5 billion, and is expanding to 140 countries. In addition, major exchanges like Coinbase and Crypto.com have already launched or are planning to launch their own prediction market products. Some believe Polymarket’s upgrade is more defensive—aimed at maintaining its leading position through technical barriers.

Industry Ripples: Two-Way Penetration Between Prediction Markets and DeFi

Impact on the Prediction Market Track

As of April 2026, the prediction market track has grown from the billion-dollar-per-month level in early 2024 to $25.7 billion in March 2026. Polymarket and Kalshi together account for about 94.85% of the track’s total funding, with capital highly concentrated in top projects.

Polymarket’s upgrade will reshape the competitive landscape across multiple dimensions:

• Technology barrier building: Improved matching efficiency and lower Gas costs from CTF Exchange V2 will squeeze smaller and mid-sized prediction market platforms at the user experience layer. For new entrants to compete, they need to match the same level across three areas simultaneously: order book architecture, on-chain execution efficiency, and fund security.
• Compliance-path demonstration: By aligning with CFTC’s compliance framework, bringing in a third-party audit institution (NFA) for independent review, updating market integrity rules, and taking other measures, Polymarket has established a set of regulatory-compliance pattern that is replicable. This provides a reference template for other prediction market platforms to operate within regulated jurisdictions.
• Liquidity aggregation trend: A unified settlement layer for native stablecoins reduces friction costs for cross-platform arbitrage. It is expected that over the medium term, there may be liquidity interoperability between top prediction market platforms, or the construction of aggregation layers.

Impact on the DeFi Ecosystem

The “DeFi-ization” of prediction markets is reflected in two layers:

• Asset layer: Polymarket USD is essentially a wrapped stablecoin. Its design aligns with the wrapped-asset logic commonly seen in DeFi ecosystems. The settlement assets of prediction markets are incorporated into the USDC system, further strengthening the stablecoin’s core position within on-chain financial infrastructure.
• Mechanism layer: The binary option structure of prediction markets has natural integration potential with DeFi derivatives protocols. The open order book architecture and EIP-1271 support of CTF Exchange V2 create technical conditions for third-party DeFi protocols to access prediction market liquidity. It is expected that in the future there could be lending protocols that use prediction market positions as collateral, or structured products built around prediction outcomes.

Future Projection: Three Possible Scenarios and Probability Judgments

Based on current information, Polymarket’s upgrade can be projected into three possible evolution scenarios:

Scenario One: Accelerated Institutional Capital Inflows

If the introduction of EIP-1271 indeed lowers the technical barrier for institutional participation, and Polymarket maintains stable performance after the upgrade, it is expected to attract more professional trading teams into prediction markets. The core driver in this scenario is that ICE has completed data productization; institutional clients can obtain standardized probability data directly through the Polymarket Signals tool. In this scenario:

• Polymarket’s monthly trading volume could exceed $20 billion in the second half of 2026.
• Market makers’ participation will improve order book depth, reduce bid-ask spreads, and further enhance user experience.
• Compliance-focused custodial institutions may launch dedicated services for managing Polymarket positions.

Scenario Two: Regulatory Tightening Leads to Structural Adjustments

Although Polymarket has received CFTC approval to operate a regulated trading platform, the regulatory environment still contains uncertainty. The CFTC recently issued a notice of proposed rulemaking, indicating an intention to establish a more comprehensive regulatory framework for prediction markets. Some members of Congress have also proposed bills to ban prediction markets from offering contracts involving war and sports outcomes. Additionally, Polymarket’s updated market integrity rules in March 2026 are themselves a response to intensifying regulatory pressure and user-behavior scandals.

In this scenario:

• The platform may be forced to limit or remove certain controversial markets (such as geopolitical conflict contracts).
• Rising compliance costs could compress the platform’s profit margins.
• Some trading activities may migrate to alternative platforms with higher decentralization and weaker regulatory constraints.

Scenario Three: Technical Upgrade Execution Risk

Any large infrastructure upgrade carries uncertainty at the technical execution level. Although Polymarket has said it will announce maintenance in advance, issues may still arise in areas such as clearing the order book, asset conversion processes, and changes to the API interfaces. In this scenario:

• Trading halts during the upgrade could lead to short-term liquidity loss.
• If the conversion process has user experience issues (such as wrapping failures or abnormal fund display), it could trigger a crisis of user trust.
• For API traders and bot operators, SDK updates and order structure changes may require additional debugging time.

Polymarket has made extensive preparations on the compliance front, and ICE’s continued funding support also provides a buffer against regulatory shocks. On the technical execution front, given the platform’s operating track record under the CFTC compliance framework, the probability of major failures is relatively controllable.

Conclusion

By launching a native stablecoin and upgrading its trading engine comprehensively, Polymarket is marking an accelerated phase in the prediction market track’s evolution—from an information-competition tool to full financial infrastructure. At the asset layer, this upgrade solves the systemic risk brought by bridge dependence. At the mechanism layer, through matching engine restructuring and EIP-1271 support, it lowers the participation threshold for institutions and programmatic traders. At the compliance layer, it continues the platform’s strategic path of aligning with the CFTC framework.

From a more macro perspective, the rapid growth of prediction markets reflects market participants’ recognition of the core logic of “probability as an asset.” When the monthly trading volume reaches $10 billion in March 2026, when the parent company of the New York Stock Exchange invests nearly $2 billion in total commitments into a prediction market platform, and when multisig wallets can directly place bets on-chain on the probability of future events, prediction markets are no longer a peripheral crypto experiment. They are becoming a new type of financial infrastructure connecting information flows, capital flows, and risk-pricing mechanisms.

For participants in the industry, this upgrade gives Polymarket a key window to observe where prediction markets may go next: the completeness of technical infrastructure, the adaptability of the compliance framework, and the depth of institutional capital participation will jointly determine the evolution trajectory of this track during the remaining time in 2026.