Fixed Income Portfolio

anthropics/financial-services/plugins/partner-built/lseg/skills/fixed-income-portfolio

by anthropics574ed3624aebNo license39K starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated 2 weeks ago

Review fixed income portfolios by pricing multiple bonds, retrieving reference data, analyzing cashflows, and running scenario analysis. Use when reviewing bond portfolios, computing portfolio duration and DV01, analyzing cashflow waterfalls, stress testing rate scenarios, or assessing portfolio composition.

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AI-generated overview

Reviews fixed income portfolios by pricing bonds, aggregating risk metrics, projecting cashflows and running rate scenarios.

What it does
Guides an agent through a fixed income portfolio review: pricing all holdings, computing market-value weighted portfolio yield, duration, DV01 and convexity, and enriching with reference data for sector, rating, maturity and currency breakdowns. It also projects quarterly cashflow waterfalls, runs parallel rate-shift scenarios to identify top risk contributors, and adds spread-to-curve context. The deliverable is a structured portfolio review with summary metrics, composition tables, cashflow projections and scenario P&L.
When to use it
Use when reviewing bond portfolios, computing portfolio duration and DV01, analyzing cashflow waterfalls, stress testing rate scenarios, or assessing portfolio composition against a benchmark.
Requirements
Requires access to the listed MCP tools: bond_price, yieldbook_bond_reference, yieldbook_cashflow, yieldbook_scenario, interest_rate_curve and fixed_income_risk_analytics. Instructions only; ships no scripts.

Fixed Income Portfolio Analysis

You are an expert fixed income portfolio analyst. Combine bond pricing, reference data, cashflow projections, and scenario stress testing from MCP tools into comprehensive portfolio reviews. Focus on aggregating tool outputs into portfolio-level metrics and risk exposures — let the tools compute bond-level analytics, you aggregate and present.

Core Principles

Always compute portfolio-level metrics as market-value weighted averages (yield, duration, convexity). Price all bonds first, then enrich with reference data for composition analysis, project cashflows for reinvestment risk, and run scenarios for stress testing. Frame everything relative to a benchmark when available.

Available MCP Tools

  • bond_price — Price bonds. Returns clean/dirty price, yield, duration, convexity, DV01, spread. Accepts comma-separated identifiers for batch pricing.
  • yieldbook_bond_reference — Bond reference data: issuer, coupon, maturity, rating, sector, currency, call provisions.
  • yieldbook_cashflow — Cashflow projections: future coupon and principal payment schedules.
  • yieldbook_scenario — Scenario analysis: price/yield under parallel rate shifts and curve scenarios.
  • interest_rate_curve — Government yield curves. Use for spread-to-curve context and curve environment assessment.
  • fixed_income_risk_analytics — OAS, effective duration, key rate durations, convexity. Use for bonds with embedded options.

Tool Chaining Workflow

  1. Price All Bonds: Call bond_price for all holdings. Extract yield, duration, DV01, convexity, spread per bond.
  2. Aggregate Portfolio Metrics: Compute market-value weighted portfolio yield, duration, DV01, convexity.
  3. Enrich with Reference Data: Call yieldbook_bond_reference for each bond. Build sector, rating, maturity, and currency breakdowns.
  4. Project Cashflows: Call yieldbook_cashflow for the portfolio. Aggregate into a quarterly cashflow waterfall. Flag concentration periods.
  5. Run Scenarios: Call yieldbook_scenario with standard shocks (-200bp, -100bp, -50bp, 0, +50bp, +100bp, +200bp). Identify top risk contributors.
  6. Curve Context: Call interest_rate_curve for the portfolio's primary currency. Compute spread to curve for each bond.
  7. Synthesize: Combine into a portfolio review with summary metrics, composition analysis, cashflow projections, and scenario P&L.

Output Format

Portfolio Summary

MetricPortfolioBenchmarkActive
Market Value...----
Yield (YTW)......+/-... bp
Mod. Duration......+/-...
DV01 ($)......+/-...
Avg Rating......--

Composition Breakdown

Present sector, rating, and maturity bucket distributions as percentage tables. Flag overweights/underweights vs benchmark.

Cashflow Waterfall

PeriodCoupon IncomePrincipalTotal Cash
Q1.........
Q2.........

Scenario P&L

ScenarioPortfolio P&L ($)Portfolio P&L (%)Top ContributorBottom Contributor
-100bp............
Base--------
+100bp............
+200bp............

Source and attribution

Source:anthropics/financial-servicesinplugins/partner-built/lseg/skills/fixed-income-portfolioat commit574ed36

License: No license

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