Ostium

Ostium is an on-chain perpetuals DEX on Arbitrum focused on FX, metals, energy, and other RWA-style instruments rather than crypto-native assets. Traders can post collateral and trade perps on FX pairs, gold, oil, and selected stocks from a single non-custodial wallet.

The positioning fills a gap in DeFi: most perps venues focus on crypto, while Ostium brings traditional macro markets on-chain.