Ostium Pushes CFD Trading Onchain, Hands Custody to Traders Instead of Brokers

Tuesday, 28/04/2026 | 14:02 GMT by Damian Chmiel
  • The upgrade arrives three months after the company's CEO told FinanceMagnates.com that DeFi would disrupt the retail brokerage industry within five years.
Kaledora Fontana Kiernan-Lin (in the middle) during the TOKEN2049 conference. Source: LinkedIn
Kaledora Fontana Kiernan-Lin (in the middle), the CEO of Ostium. Source: LinkedIn

Ostium Labs wants traders, not brokers, to hold the money. The Miami-based developer launched infrastructure today (Tuesday) that pushes CFD-style trading of stocks, commodities, and FX onchain, letting retail clients trade from their own wallets instead of routing funds through a broker.

Singapore Summit: Meet the largest APAC brokers you know (and those you still don't!)

The developer is calling the upgrade the first real-time decentralized execution layer, pitching it as a self-custodial alternative to a CFD market the company estimates at $10 trillion in monthly trading volume.

Trades on Ostium now route through a network of institutional hedging partners that includes Jump, prime brokers, and other firms active in traditional markets, the company said, replacing a model in which a single public liquidity pool absorbed all directional risk on its own.

From Single-Pool Risk to Institutional Hedging Network

Under the new architecture, a separate capital pool routes net exposures to offchain institutional partners and settles once daily, with a buffer layer sitting on top of the public liquidity pool, the company said.

The public pool now functions as an intraday lending layer rather than a counterparty to traders. Pricing references real-time depth from offchain venues, with the protocol drawing on global liquidity sources rather than rebuilding orderbook liquidity from scratch on each asset, according to the firm.

The technical lift was substantial, the company claims.

Marco Antonio Ribeiro, the CTO at Ostium
Marco Antonio Ribeiro, the CTO at Ostium

"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,” Marco Antonio Ribeiro, the company's co-founder and chief technology officer, said in a statement.

“Fifteen of our twenty engineers worked on this for four months. It's the first time this has been done.”

Crypto Exchanges and DeFi Rivals Crowd the Onchain CFD Pitch

The architecture shift comes against a busier competitive backdrop than when Ostium first launched.

In a February interview with FinanceMagnates.com, co-founder and CEO Kaledora Kiernan-Linn argued that DeFi will disrupt the global CFD broker market within five years, pointing to retail FX and commodities as the segments most likely to migrate first.

Tuesday's announcement is the company's most concrete attempt to date to back that thesis with infrastructure.

Centralized crypto exchanges have been pushing into the same territory from the other direction. Bitget brought CFDs and crypto together following its tokenized US stocks and ETFs rollout earlier this year, while Coinbase and Crypto.com have acquired CFD licenses, bringing well-funded incumbents into the same retail derivatives market that Ostium is targeting. On the institutional side,

Gold-i in March opened on-chain derivatives access for MetaTrader 5 brokers through a Hyperliquid tie-up, giving traditional CFD venues a route into the same DeFi rails that platforms like Ostium are built on.

Self-Custody Becomes the Sales Pitch

The company's broader pitch leans on self-custody as the differentiator from traditional CFD brokers. Funds remain in user wallets, every trade is verifiable onchain, and settlement is instant, the firm said.

Traders globally can take exposure to stocks, commodities, indices, ETFs, and FX from a self-custodial wallet, according to the company.

"Just as stablecoins extended the reach of the U.S. dollar, Ostium extends the reach of the world's most liquid global markets to anyone with a wallet ... Ostium does the same for trading global markets," Kiernan-Linn said in a statement.

The framing echoes a wider debate about where retail trading is heading. In a recent interview, Para founder and CEO Nitya Subramanian told FinanceMagnates.coim that CFD brokers will have to compete on product quality as wallet infrastructure moves into retail finance, arguing that switching friction is no longer enough to retain clients once portable wallets reach mainstream brokerage.

Ostium's bet is that the same logic applies to execution, not just custody.

Ostium Labs wants traders, not brokers, to hold the money. The Miami-based developer launched infrastructure today (Tuesday) that pushes CFD-style trading of stocks, commodities, and FX onchain, letting retail clients trade from their own wallets instead of routing funds through a broker.

Singapore Summit: Meet the largest APAC brokers you know (and those you still don't!)

The developer is calling the upgrade the first real-time decentralized execution layer, pitching it as a self-custodial alternative to a CFD market the company estimates at $10 trillion in monthly trading volume.

Trades on Ostium now route through a network of institutional hedging partners that includes Jump, prime brokers, and other firms active in traditional markets, the company said, replacing a model in which a single public liquidity pool absorbed all directional risk on its own.

From Single-Pool Risk to Institutional Hedging Network

Under the new architecture, a separate capital pool routes net exposures to offchain institutional partners and settles once daily, with a buffer layer sitting on top of the public liquidity pool, the company said.

The public pool now functions as an intraday lending layer rather than a counterparty to traders. Pricing references real-time depth from offchain venues, with the protocol drawing on global liquidity sources rather than rebuilding orderbook liquidity from scratch on each asset, according to the firm.

The technical lift was substantial, the company claims.

Marco Antonio Ribeiro, the CTO at Ostium
Marco Antonio Ribeiro, the CTO at Ostium

"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,” Marco Antonio Ribeiro, the company's co-founder and chief technology officer, said in a statement.

“Fifteen of our twenty engineers worked on this for four months. It's the first time this has been done.”

Crypto Exchanges and DeFi Rivals Crowd the Onchain CFD Pitch

The architecture shift comes against a busier competitive backdrop than when Ostium first launched.

In a February interview with FinanceMagnates.com, co-founder and CEO Kaledora Kiernan-Linn argued that DeFi will disrupt the global CFD broker market within five years, pointing to retail FX and commodities as the segments most likely to migrate first.

Tuesday's announcement is the company's most concrete attempt to date to back that thesis with infrastructure.

Centralized crypto exchanges have been pushing into the same territory from the other direction. Bitget brought CFDs and crypto together following its tokenized US stocks and ETFs rollout earlier this year, while Coinbase and Crypto.com have acquired CFD licenses, bringing well-funded incumbents into the same retail derivatives market that Ostium is targeting. On the institutional side,

Gold-i in March opened on-chain derivatives access for MetaTrader 5 brokers through a Hyperliquid tie-up, giving traditional CFD venues a route into the same DeFi rails that platforms like Ostium are built on.

Self-Custody Becomes the Sales Pitch

The company's broader pitch leans on self-custody as the differentiator from traditional CFD brokers. Funds remain in user wallets, every trade is verifiable onchain, and settlement is instant, the firm said.

Traders globally can take exposure to stocks, commodities, indices, ETFs, and FX from a self-custodial wallet, according to the company.

"Just as stablecoins extended the reach of the U.S. dollar, Ostium extends the reach of the world's most liquid global markets to anyone with a wallet ... Ostium does the same for trading global markets," Kiernan-Linn said in a statement.

The framing echoes a wider debate about where retail trading is heading. In a recent interview, Para founder and CEO Nitya Subramanian told FinanceMagnates.coim that CFD brokers will have to compete on product quality as wallet infrastructure moves into retail finance, arguing that switching friction is no longer enough to retain clients once portable wallets reach mainstream brokerage.

Ostium's bet is that the same logic applies to execution, not just custody.

About the Author: Damian Chmiel
Damian Chmiel
  • 3487 Articles
  • 109 Followers
About the Author: Damian Chmiel
Damian Chmiel is a Senior Analyst & Editor at Finance Magnates with more than 15 years of experience in the CFD and online trading industry. Active as both a trader and journalist since 2010, he focuses on broker coverage, fintech innovation, and regulatory developments across Europe, the Middle East, and Asia. His work includes interviews with C-level leaders at major brokerages and fintech platforms, as well as co-authoring Finance Magnates’ quarterly industry benchmarking reports. Damian’s reporting is data-driven, market-aware, and grounded in direct industry engagement. His analysis and commentary have also been cited by external media outlets, including Investing.com, Binance, The Asset, Stockhead, and Dispatch. Education: MA in Finance and Accounting, Cracow University of Economics
  • 3487 Articles
  • 109 Followers

More from the Author

Retail FX

!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|} !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}