Ostium Raises $24M to Bring Global Markets Fully OnChain

Ostium, one of the earliest platforms to offer onchain perpetual exposure to traditional markets, just announced $24 million in new funding — including a $20M Series A co-led by General Catalyst and Jump Crypto — following a previously unannounced $4 million strategic round. (Cover: Co-founder Kaledora)
 
The raise cements Ostium as one of the breakout teams building a future where traders can access stocks, commodities, indices, and FX directly from a self-custodial wallet, with no brokers, no opaque execution engines, and no custodial risk.

The platform has already generated $25 billion in cumulative trading volume, including $5B in metals trades, proving that demand for on-chain access to real-world markets is very real — and growing fast.

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Why Ostium Matters: Traditional Markets, Rebuilt OnChain

For years, crypto perpetuals have shown what transparent, self-custodial markets can look like. But that model has largely stopped at crypto assets.
 
If you wanted exposure to gold, Tesla, EUR/USD, or the S&P 500, you still had to rely on broker-controlled systems:
 – opaque pricing
 – discretionary liquidations
 – withdrawal delays
 – custody risks
 
Ostium flips that model. It replaces the entire CFD brokerage layer with a permissionless, transparent onchain market where:

• every spread is visible

• every trade is auditable

• every liquidity parameter is open

• capital stays in user-owned smart contracts

It’s the first platform where traders can access perpetual exposure to global markets without moving funds into traditional broker infrastructure.

“We’ve believed from day one that the global CFD broker market will be disrupted by DeFi. Crypto traders wanted exposure to traditional assets without giving up custody. Now the next chapter is about disrupting the legacy broker model entirely.”

Kaledora Kiernan-Linn, Ostium’s co-founder & CEO

Traction: $25B Volume & Dominance in On-Chain Gold

Built on Arbitrum, Ostium has become the leading perpetuals venue for real-world assets, with over 95% of open interest coming from non-crypto markets.
 
During the ongoing gold rally, the protocol captured over 50% of on-chain gold OI, becoming the only place where traders could size into metals perps with predictable holding costs.
 
Ostium’s quote-based pricing offers institutional-grade execution, while its self-custodial architecture keeps trader capital locked in segregated smart contracts.

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Investors Backing the Vision

The raise — which was 4x oversubscribed — drew some of the most respected names in crypto and global markets:

• General Catalyst

• Jump Crypto

• FalconX

• CMT Digital

• Maven 11

• GSR

• CMS Holdings

• Marc Zeller (Aave Chan Initiative)

Existing investors include Balaji Srinivasan, SIG, LocalGlobe, GSR, Crucible Capital, and former traders from Bridgewater, Two Sigma, and Brevan Howard.

“Ostium is building the transparent, resilient infrastructure that can disrupt the $10T-per-month CFD market. They were early — and it shows in their traction.”

Marc Bhargava, Managing Director at General Catalyst

Jump Crypto agrees: “Ostium isn’t rebuilding exchanges — they’re competing directly with brokers by quoting from the real off-chain liquidity that powers global markets,” said Saurabh Sharma, CIO at Jump Crypto.