aid: acadiasoft name: Acadia description: 'Acadia, founded in 2009 as AcadiaSoft, provides risk, margin and collateral management services to the global uncleared OTC derivatives market and now operates as part of LSEG Post Trade following LSEG''s December 2022 acquisition. Its AcadiaPlus platform — Agreement Manager, Margin Manager, Collateral Manager, IM Exposure Manager, Payments Manager, Settlement Manager and Relay, alongside the Risk Suite analytics services — connects more than 2,000 market participants for initial-margin calculation, margin-call messaging, reconciliation, dispute resolution and settlement. Acadia''s own factsheets state its applications are reachable by web user interface, direct API and SFTP, but that interface is delivered under customer contract: the product documentation portal is authenticated and no public specification is published. The company''s one public machine-readable artifact is simm-lib, an MIT-licensed Java implementation of the ISDA SIMM initial-margin model.' url: https://raw.githubusercontent.com/api-evangelist/acadiasoft/refs/heads/main/apis.yml image: https://avatars.githubusercontent.com/u/30508839?v=4 x-type: company x-source: harvest:secondary-market x-tier: profiled x-tier-reason: enrichment specificationVersion: '0.20' position: Producing created: '2026-09-06' modified: '2026-09-06' tags: - Company - Financial Services - Capital Markets - Derivatives - Risk Management - Collateral Management - Margin - Post Trade - Regulatory Compliance apis: [] maintainers: - FN: Kin Lane email: kin@apievangelist.com - FN: APIs.json email: info@apis.io common: - type: ParentCompany url: https://apis.io/providers/london-stock-exchange-group/ name: London Stock Exchange Group x-relationship: acquired x-evidence: LSEG agreed to acquire Acadia in December 2022 and completed it in 2023; acadia.inc now 301s wholesale to www.lseg.com/en/post-trade/solutions/acadia and DMARC on acadia.inc and acadiasoft.com reports to rua@lseg.com. - type: DomainSecurity url: security/acadiasoft-domain-security.yml - type: Website url: https://www.lseg.com/en/post-trade/solutions/acadia - type: GitHubOrganization url: https://github.com/AcadiaSoft - type: SourceCode url: https://github.com/AcadiaSoft/simm-lib - type: Packages url: packages/acadiasoft-packages.yml - type: Conformance url: conformance/acadiasoft-conformance.yml - type: Lifecycle url: lifecycle/acadiasoft-lifecycle.yml - type: ChangeLog url: changelog/acadiasoft-changelog.yml - type: LLMsTxt url: llms/acadiasoft-llms.txt - type: Plans url: plans/acadiasoft-plans-pricing.yml - type: RateLimits url: rate-limits/acadiasoft-rate-limits.yml x-enrichment: date: '2026-09-06' status: minimal artifacts_added: 10 pass: local-v3 x-coverage: state: gated reason: customer-only-docs detail: Acadia's entire product documentation set lives on an Atlassian Confluence instance at portal.acadiasoft.com whose every anonymous request 302s to an OAuth2 authorization endpoint with realm=docportal, and whose own OpenID/RFC 8414 discovery documents return 401 — so the direct API its factsheets advertise has no publicly readable contract, reference or limits. evidence: - url: https://portal.acadiasoft.com/ status: 302 - url: https://portal.acadiasoft.com/identity/.well-known/openid-configuration status: 401 - url: https://acadia.inc/openapi.json status: 301 - url: https://www.lseg.com/en/post-trade/solutions/streamline/margin-manager status: 200 checked: '2026-09-06' x-parent: london-stock-exchange-group x-relationship: acquisition x-acquired: 2023