Ostium is a decentralized perpetual exchange protocol that enables onchain trading of stocks, commodities, forex, and crypto against real-world liquidity. Ostium's Twitter Score is 229 out of 1000 (an Excellent rating) as of October 2026, ranking #1,825 (top 0.5%) among 498,071 tracked accounts.
Ostium was co-founded by Kaledora Kiernan-Linn and Marco Antonio Ribeiro. The protocol raised $24M in a round co-led by General Catalyst and Jump Crypto, at a valuation of approximately $250 million. Additional backers include Wintermute Ventures, Coinbase Ventures, Crucible Capital, Susquehanna (SIG), GSR, LocalGlobe, Balaji Srinivasan, Bridgewater, Two Sigma, and Brevan Howard.
Ostium is deployed on Arbitrum and has reported cumulative trade volume of over $45 billion, peak open interest above $300 million, and more than 25,000 active traders. The protocol has been audited by Zellic, ThreeSigma, and Pashov, with no critical vulnerabilities reported. As of reporting, Ostium has made no official announcements regarding a token launch.
Ostium has 60,649 followers as of October 2026 and has published 5,401 posts. The account has been mentioned by 447 accounts a total of 1,336 times.
Who follows Ostium on X?
The accounts that follow Ostium include 789 founders, 243 angel investors, 480 influencers and 12 VCs. Among them are Laura Shin, Andrew Kang, Meltem Demirors, Smolting Wassie, Zhu Su and Andre Cronje.