Portfolio Risk Decomposition & Factor Attribution Analysis
Decompose portfolio risk into factors and generate attribution reports for rebalancing
What You Can Do
You can isolate which positions, sectors, and factor bets are driving your portfolio's volatility, drawdowns, and correlation breakdowns. This skill walks you through risk decomposition frameworks, exposure quantification, stress scenario analysis, and rebalancing logic—transforming raw portfolio metrics into clear attribution insights that justify tactical adjustments to risk committees and investment stakeholders.
Features
decompose returns and risk into allocation vs. selection effects across positions and sectors
calculate beta decomposition, factor loadings, and systematic vs. idiosyncratic risk contribution
identify hidden correlated bets and sector/geographic concentration that amplify tail risk
connect risk sources to portfolio outcomes under rate shocks, credit spreads, volatility spikes, and macro dislocations
allocate risk by factor or sector and track consumption against strategic limits
compare risk contribution vs. return contribution to justify position-level adjustments
structured templates for communicating decomposition findings to stakeholders and auditors
Example Output
Example 1: Factor Contribution Report
Portfolio Risk Decomposition (Period: Q3 2024)
Factor Contributions to Total Portfolio Risk (12% annualized volatility):
- Equity Beta (8% vol): 65% of portfolio risk
- Interest Rate Duration (2.1 years): 20% of portfolio risk
- Credit Spread Exposure: 12% of portfolio risk
- FX Hedging Ratio (65% unhedged EUR): 3% of portfolio risk
Concentration Alerts:
- Technology sector: 28% of equity beta (vs. 22% benchmark) → +$2.3M risk contribution
- Single issuer (Top holding): 4.2% of portfolio, $1.8M undiversified idiosyncratic risk
Example 2: Rebalancing Recommendation
Quarterly Risk Review Finding:
Tech overweight (28% vs. 22% benchmark) has contributed 65 bps to recent drawdown.
Recommendation: Trim 2% to reduce factor concentration while maintaining alpha positioning.
Expected risk reduction: 18-22 bps annualized volatility (with minimal return drag).
What's Included
- SKILL.md instruction file with decomposition frameworks, terminology, and workflow logic:
- Risk Attribution Template (Excel-ready structure for Brinson-Fachler and factor contribution calculations):
- Factor Exposure Mapping Checklist (systematic process for identifying and quantifying beta, duration, spread, FX, and sector loadings):
- Stress Scenario Matrix (rate/spread/vol shock scenarios linked to position-level and portfolio outcomes):
- Rebalancing Decision Framework (decision tree for comparing risk vs. return contribution imbalances):
- Risk Committee Report Template (formatted one-pager for presenting decomposition findings and recommendations):
Who It's For
- Quantitative Analysts — building systematic risk decomposition and attribution workflows for portfolio review cycles
- Portfolio Managers — understanding hidden risk sources before rebalancing and explaining decisions to investment committees
- Risk Managers — monitoring factor exposures, stress testing, and tracking risk budget consumption across strategies
- Compliance & Audit Teams — documenting risk rationale and decomposition logic for regulatory reviews and auditor sign-off
- Institutional Investors — evaluating whether portfolio drawdowns align with strategic factor positioning or represent manager error
Best For
- Quarterly/monthly portfolio risk reviews before rebalancing decisions
- Investigating unexpected drawdowns and correlation shifts across holdings
- Stress-testing portfolios against macro scenarios (rate shocks, credit events, volatility spikes)
- Building and monitoring risk budgets by factor, sector, or geographic region
- Presenting risk decomposition findings and rebalancing rationale to investment committees
You might also like
You can rapidly value complex structured notes, convertibles, and equity-linked instruments by breaking them into vanilla bonds and embedded derivatives. The skill guides you through scenario analysis, sensitivity testing, and credit spread modeling to identify secondary market mispricings, calculate Greeks, and stress-test barrier knockouts or coupon adjustments. Output includes fair value estimates, comparable valuation matrices, and hedge recommendations defensible to traders and risk committees.
by fission
You can construct rigorous development pro formas that model complex project dynamics—construction budgets, phased timelines, pre-leasing velocity, financing structures, and market assumptions—then run sensitivity analysis to show how changes in rent, construction costs, or hold periods impact returns. This skill produces defensible investment theses suitable for LP presentations, lender submissions, and institutional review committees by capturing interdependencies that simple models miss.
by fission
You can map individual holdings against multiple thematic investment frameworks simultaneously, generating transparency-rich alignment scores that reveal true thematic exposure. Unlike traditional ESG screening, this skill identifies positive exposure to specific trends and solutions, helping you track portfolio concentration within thematic segments, detect misaligned holdings, and quantify drift from stated investment mandates with measurable impact metrics.
by fission
You can conduct rigorous competitive positioning analysis for SaaS companies by mapping competitors across pricing architecture, target buyer personas, feature differentiation, go-to-market efficiency, and retention dynamics. This skill transforms raw competitive data into structured frameworks that identify sustainable competitive advantages, market share vulnerabilities, and valuation implications—helping you differentiate your research thesis from consensus and reduce confirmation bias in your coverage.
by fission
You can rapidly evaluate multiple financing structures for M&A, recapitalizations, and growth transactions by modeling different capital stack configurations and comparing them against recent comparable transaction benchmarks. The skill helps you assess debt capacity, analyze covenant headroom across downside scenarios, and stress-test leverage under EBITDA decline, capex disruption, and refinancing risk—enabling you to present optimized structures that balance cost of capital, covenant flexibility, and stakeholder requirements in client presentations and pitch books.
by fission
You can systematically evaluate corporate bond issuers by synthesizing quantitative metrics (leverage ratios, cash flow coverage, liquidity), qualitative factors (management quality, competitive positioning, covenant protections), and market signals (credit spreads, relative value) into a cohesive credit opinion. This framework enables you to construct ratings that withstand peer review, document credit theses for investment committees, and respond to market events with quantified analytical support.
by fission
You can ingest multi-property portfolio data and generate comprehensive financial diagnostics, including performance metrics, peer benchmarking, concentration risk analysis, and stress-test scenarios across economic conditions. Claude systematizes the analysis of 10-500+ heterogeneous assets (varying property types, leverage, lease structures, and markets) to identify underperformers, quantify rebalancing impact, and deliver executive summaries with specific buy/sell/hold recommendations backed by financial modeling.
by fission
You'll architect backtesting systems that separate genuinely profitable strategies from curve-fitted fantasies. The skill guides you through modeling realistic market microstructure, accounting for transaction costs, detecting survivorship bias, and stress-testing strategies across regime changes. You'll implement walk-forward validation, out-of-sample testing, and Monte Carlo simulations to predict actual live performance and identify where backtest results diverge from real trading outcomes.
by fission