Your Gateway to Global Markets
Go long or short stocks, indices, commodities and forex as perps, with deep books built for size, low and predictable holding cost, and 100% self custody. Trusted by 26K+ traders.

Markets
0+
Volume
$0B+
Trusted by
0K+
Why traders choose Ostium
Among the lowest costs onchain. Low and predictable holding costs, among the lowest of any onchain venue. Full onchain transparency.
Access in minutes. Markets move fast. So can you. No forms, no approval queues, no days of paperwork.
Your money is never locked. Your funds stay in your hands, 100% self custody. No one can freeze them, restrict them, or close them out.
Built for size . Ostium is where traders come when they want real size on, fast.

Backed by Leading Investors
“Ostium is democratizing access to global markets in a way we haven't seen before. It's a gateway for traders to efficiently capitalize on macro news across traditional financial markets, all with the speed and accessibility of decentralized finance.”
Marc Bhargava
General Catalyst


Meltem Demirors

Balaji Srinivasan

Nick van Eck

0xAnteater
And angel investors from
Common Questions
Your money sits in your own wallet that you fully control. It never gets transferred to Ostium or the platform. No one can freeze your balance, restrict access, or lock you out of your funds.
Real markets. Real depth.
Position across 70+ real markets as perps: stocks, gold, indices, FX.
Sign up in minutes. Fund by card, bank, or Apple Pay.