REG 01028 DFI
About Ostium
Ostium is a derivatives exchange that runs on Arbitrum. Public on-chain data put its total value locked at around $2.5 million at the latest refresh. The project lists published security audits and publishes code on GitHub. Official announcements are posted on X at @OstiumLabs.
1 Value locked from public DefiLlama data at the last refresh, 4 Nov 2026.
Supported chains
Filed alongside
Other perpetuals & options in the register.
REG 00540
Extended
Perpetuals & Options
Not disclosed
—
Listed
Derivatives exchange on Arc, Ethereum and Starknet
REG 00578
dYdX
Perpetuals & Options
Not disclosed
—
Listed
Derivatives exchange on dYdX and Ethereum
REG 00583
Arcus
Perpetuals & Options
Cayman Islands
2026
Listed
Derivatives exchange on Robinhood Chain
REG 00666
ApeX Protocol
Perpetuals & Options
Not disclosed
—
Listed
Derivatives exchange across 8 chains
Questions
- What is Ostium?
- Derivatives exchange on Arbitrum. Ostium is filed under Perpetuals & Options on BitOrgs.
- Which blockchains does Ostium support?
- Ostium supports Arbitrum.
- Has BitOrgs verified Ostium?
- Not yet. This entry was compiled from public sources. If you represent Ostium, claim it to have it verified.
Reviews
No reviews yet. If you have used Ostium, describe what it was like.
Write a review
Corrections and badge
Suggest a correction
Get the “Listed on BitOrgs” badge
Optional. Paste this on your site to link to your entry. It is never a condition of being listed.