Ostium Raises $20M Series A Led by General Catalyst, Jump Crypto to Put TradFi Perps Onchain

Jump Crypto, General Catalyst Lead $20M Series A for Onchain Tradfi Perps Firm Ostium

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Built on Arbitrum, the perpetuals protocol has processed $25 billion in trading volume by offering self-custodial bets on gold, FX and other real-world markets.

By Will Canny, AI Boost|Edited by Nikhilesh De

Dec 3, 2025, 4:38 p.m.

(sergeitokmakov/Pixabay/Modified by CoinDesk)

Ostium has raised $24 million in new funding, including a $20 million Series A co-led by General Catalyst and Jump Crypto.
The Arbitrum-based protocol offers on-chain perpetual swaps tied to equities, commodities, indices and FX.
The platform has seen $25 billion in cumulative volume with more than 95% of open interest in traditional markets.

Ostium Labs, the team behind the Ostium protocol, has raised $24 million in new funding, including a $20 million Series A co-led by General Catalyst and Jump Crypto and an undisclosed $4 million strategic round, the company said in a press release on Wednesday.

This takes the company’s taking total funding to $27.8 million, the firm said.

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Built on Arbitrum, Ostium offers on-chain perpetual swaps tied to stocks, commodities, indices and FX, pitching self-custody and auditable market rules as a crypto-native alternative to broker-run contracts for difference (CFDs).

The protocol keeps traders’ collateral in segregated smart contracts, preserving self-custody.

“Our thesis has been that the global CFD broker market will be disrupted by DeFi. Our ambition is to build the platform to make that possible,” said Kaledora Kiernan-Linn, co-founder and CEO of Ostium, in the release.

Ostium’s existing backers include Balaji Srinivasan, LocalGlobe, Susquehanna International Group (SIG), Crucible Capital, GSR, Nick Van Eck, Shiliang Tang and angels from firms including Bridgewater, Two Sigma and Brevan Howard.

The protocol said it had processed $25 billion in cumulative volume and that more than 95% of open interest is in traditional markets, including major on-chain gold perps share during the current rally.

Ostium said it will use the new funds to expand its asset coverage and scale infrastructure.

AI Disclaimer: Parts of this article were generated with the assistance from AI tools and reviewed by our editorial team to ensure accuracy and adherence to our standards. For more information, see CoinDesk’s full AI Policy.

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