Opterra

Opterra is a combined oms/pms platforms product from Arcesium. Post-trade and investment operations platform covering unified accounting, allocations, reconciliations and treasury; paired with Limina for front-to-back. It is also listed under portfolio accounting, reconciliation, treasury and cash, managed services, regulatory reporting, fund accounting and nav, data management, fee billing and prime brokers and custody. Arcesium is based in Stockholm, Sweden and was founded in 2014 and is owned by Arcesium. Buyside Fintech verified that Arcesium lists this product on the vendor's own website on 2026-09-06, and the page we read is linked below. We do not record how it is deployed, how it is priced, what it costs and the firm sizes it serves for this product, because Arcesium does not publish it; the table below shows those rows empty rather than hiding them. Practitioner reviews and questions about Opterra appear below, and anyone at a firm that uses it can add one.