Portfolio Management Systems

Core Concepts

Expanded detail for each numbered section below lives in references/platform-details.md. Load it when the task needs: §1 the platform comparison table or IBOR/OBOR reconciliation dimensions; §2 full model specification, governance steps, or marketplace detail; §3 UMA cash-waterfall rules or the UMA/SMA/wrap comparison table; §4 drift measurement formulas, threshold configurations, or tax-aware rebalancing logic; §5 aggregation data sources and data-quality failure modes; §6 break-resolution workflow, corporate-action types, or cost basis methods; §8 daily vs. monthly calculation and benchmark tracking detail; §10 the custodian data-flow table, integration methods, and feed timing. (Reference §7 trading and §9 billing are pointers to the order-management-advisor and fee-billing skills — load those skills directly instead.)

1. Portfolio Management System Architecture

The PMS is the operational nerve center of an advisory practice, orchestrating data flow between custodians, trading platforms, reporting engines, CRM, and planning tools. Core functions include portfolio construction, model management, rebalancing, trading, performance reporting, and billing. Major platforms: Orion, Black Diamond, Tamarac, Addepar, Morningstar Direct, Advent/APX. The PMS serves as the firm's Investment Book of Record (IBOR), which must be reconciled daily against the custodian's Official Book of Record (OBOR).