SD-09.4 — Benchmark Management

Business Domain: BD-09 Performance & Analytics (Middle office) · Applies: BOTH

Purpose

Selects, constructs and maintains the benchmarks portfolios are measured against. A return figure is meaningless without a comparator; Benchmark Management is the capability that decides and maintains the comparator. It is the judgement and administration side of benchmarks — which benchmark fits which mandate, how a custom or blended benchmark is built, keeping the assignment current — distinct from SD-13.5 Benchmark & Index Data Management, which holds and maintains the benchmark as a data asset.

The investment-performance body of knowledge folds benchmark analysis into attribution and appraisal; OpenIM keeps Benchmark Management a Service Domain in its own right because benchmark administration — selection, blended construction, assignment, rebalancing governance — is a distinct operational responsibility with its own ownership, separate from the analytics that consume benchmarks.

Service Operations

• Benchmark selection — choose the appropriate benchmark for a portfolio or mandate, given its asset class, strategy and objective.
• Custom and blended benchmark construction — build a composite benchmark from weighted constituents where no single index fits the mandate.
• Policy-benchmark construction — build and govern the total-fund policy benchmark that expresses the strategic asset allocation; a governance artefact, board-approved, distinct from a general blended benchmark.
• Benchmark assignment — attach a benchmark to a portfolio and maintain that assignment as mandates change.
• Benchmark rebalancing governance — define the rebalancing rule for a custom benchmark and oversee its application.
• Benchmark appropriateness review — periodically test whether an assigned benchmark still fits the portfolio it measures, against the recognised validity criteria (Bailey’s SAMURAI tests — specified, appropriate, measurable, unambiguous, reflective of current investment opinion, accountable, investable).

Inputs and outputs

• Inputs: portfolio and mandate definitions (E-03); the benchmark and index data asset (E-10, maintained by SD-13.5); the strategic asset allocation (SD-01.4) for the policy benchmark.
• Outputs: the benchmark assigned to each portfolio, and the definition of any custom or blended benchmark — consumed by SD-09.1 (benchmark-relative return), SD-09.2 (attribution), SD-09.3 (appraisal), and SD-01 (the policy benchmark).

Entities

• Consumes: E-10 Benchmark / Index, E-03 Portfolio / Mandate, E-09 Asset Class; the SD-01.4 strategic asset allocation; the SD-13.5 benchmark and index data asset.
• Owns: none directly — the benchmark data asset (E-10) is owned by SD-13.5. SD-09.4 owns the decision (which benchmark, the custom-benchmark definition); SD-13.5 owns the data. A custom benchmark SD-09.4 constructs becomes an E-10 record that SD-13.5 then maintains.

Standards

• GIPS — GIPS requires a benchmark be defined for each composite and that benchmark choice be disclosed; benchmark appropriateness is a GIPS consideration governed with SD-09.6.

Open extensions

• The custom-benchmark-construction handoff to SD-13.5 — how a constructed benchmark becomes a maintained E-10 record.
• The relationship to PM-12 Benchmark Cross-Reference for private-markets peer universes.