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Ostium Labs, a Miami-based decentralized trading protocol founded by Harvard alumni, launched a major infrastructure upgrade on April 28 that separates how it manages liquidity and introduces Jump (Jump Crypto's trading arm) as a primary hedging counterparty alongside unnamed prime brokers.

The overhaul is designed to let the platform scale open interest in real-world assets beyond what its previous architecture could support, and it positions Ostium more directly against the traditional contracts-for-difference (CFD) broker industry.

The core change splits responsibilities that previously sat inside a single public liquidity pool. Under the prior design, that pool, called the OLP, served a dual function: settling trades and absorbing all net directional exposure, a constraint that limited how far open interest could scale. Now the OLP functions as an intraday lending layer covering the short-term settlement of trades. A separate institutional capital pool absorbs net directional exposure by hedging positions offchain with traditional market participants, with settlement occurring once daily. In plain terms: when a trader opens a leveraged position on gold or a stock index, the protocol now routes the exposure to Jump and other institutions rather than leaving it entirely with on-chain liquidity providers.

The engineering effort was substantial. Co-founder and CTO Marco Antonio Ribeiro said the build required 15 of the company's 20 engineers over four months. "Programmatically hedging onchain flow with traditional market participants required building a new kind of infrastructure, a translation layer between smart contracts and institutional-grade messaging protocols, with sub-100-millisecond latency across every step. It's the first time this has been done," Ribeiro said in the official announcement.

The upgrade also replaces fixed open interest caps with dynamic limits that adjust in real time based on available depth in the corresponding traditional markets.

On-chain metrics

According to DefiLlama, as of April 28, Ostium carries approximately $138.8 million in open interest across its listed markets. Annualized fees stand at roughly $38.7 million and annualized revenue at approximately $12.5 million.

The protocol's own figures, published alongside the upgrade announcement, put cumulative trading volume above $50 billion and total protocol revenue at nearly $35 million since launch, across more than 26,000 traders and roughly one million trades.

Around 97% of current open interest sits in non-crypto asset pairs. Gold alone accounts for more than $71 million of that figure, the largest single market by open interest, according to available data.

Ostium is built on Arbitrum, an Ethereum layer-2 network, and settles all positions in USDC. Users trade synthetic perpetual contracts, meaning positions track the price of an asset without requiring direct ownership. Leverage goes up to 200x and positions can be opened from as little as five dollars.

What this means for traders outside the United States

The upgrade carries practical relevance for retail traders in South Asia and Africa, where CFD and forex trading is widespread but regulatory oversight is inconsistent. India has one of the world's largest retail derivatives markets, yet SEBI data indicates that 91% of individual futures and options traders lost money in the fiscal year ending 2025, with net losses widening 41% to approximately $12.37 billion.

A significant portion of Indian retail traders access offshore brokers that fall outside the Reserve Bank of India's approved frameworks. The RBI maintains an Alert List of nearly 100 unauthorized platforms, yet traders on those services remain exposed to counterparty risk including fund freezes and insolvency. Users trading synthetic forex and equity exposures offshore also face compliance obligations under the Foreign Exchange Management Act (FEMA).

South Africa hosts an estimated 190,000 to 200,000 active forex traders, and broker fraud remains a documented problem across the continent. Nigerian and Kenyan traders similarly rely on international platforms with limited domestic regulatory recourse. Pakistan presents a comparable environment, with a substantial population of active CFD traders operating under significant regulatory ambiguity.

Ostium's self-custody model means traders never deposit funds with a broker. Positions open and close through a personal wallet connected to the Arbitrum network, removing the broker as an intermediary holding client funds. The protocol also offers one-click trading with gas sponsorship, reducing the technical barrier for participants with limited experience in blockchain mechanics. That design does not eliminate market risk, and users in jurisdictions with foreign exchange controls still face compliance questions under local law. But it directly addresses the counterparty failure risk that has cost retail traders in these regions significant sums.

Co-founder and CEO Kaledora Kiernan-Linn framed the broader ambition in a statement accompanying the launch. "Just as stablecoins extended the reach of the U.S. dollar," she said, "Ostium extends the reach of the world's most liquid global markets to anyone with a wallet." That comparison is a company claim, not an established market outcome.

Context and outlook

The upgrade arrives as decentralized perpetuals trading has grown considerably. The ratio of DEX to CEX perpetual futures volume tripled, from 6.3% to 18.7%, in 2025, with monthly DEX volumes exceeding $1.2 trillion by December of that year.

Ostium competes in this space alongside Hyperliquid and dYdX, as well as Avantis, an emerging RWA-focused protocol that targets the real-world asset segment more directly. The company also targets the traditional CFD industry, which it estimates processes $10 trillion in monthly volume globally.

Jump Crypto co-led Ostium's $20 million Series A in December 2025 alongside General Catalyst, with additional participation from Coinbase, SIG, and Wintermute, plus angels with backgrounds at Bridgewater, Two Sigma, and Brevan Howard. A separate $4 million strategic round brought total funding to $27.8 million. The names of the prime brokers participating in the new hedging architecture have not been disclosed.