portfolio-review

Calculate effective position counts, correlation clusters, and factor exposures from portfolio weightings and return data.

25|3|Updated Jul 14, 2026
One-click install
npx skills add https://github.com/nimadorostkar/Claude-Skills-collection --skill portfolio-review-nimadorostkar
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: portfolio-review
Source: https://github.com/nimadorostkar/Claude-Skills-collection/tree/main/skills/finance/portfolio-review
Command: npx skills add https://github.com/nimadorostkar/Claude-Skills-collection --skill portfolio-review-nimadorostkar

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill solves the problem of portfolio opacity, where a collection of assets appears diversified on the surface but actually represents a single, concentrated, or unintended bet.

Core Features & Use Cases

  • Effective Diversification Analysis: Calculates the true number of independent bets by accounting for asset correlations.
  • Factor & Cluster Exposure: Identifies hidden risks by grouping assets that move together and measuring exposure to market factors like momentum, value, and quality.
  • Use Case: Use this when you need to validate if a portfolio's actual performance drivers align with the stated investment thesis or if it has drifted into unintended risk concentrations.

Quick Start

Use the portfolio-review skill to analyze the provided holdings and return history to identify hidden concentration risks and factor exposures.

Frequently Asked Questions about portfolio-review

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I analyze effective position counts and correlation clusters in my portfolio?

Effective position counts and correlation clusters are analyzed by processing your portfolio weightings and historical return data through regression and variance analysis. This identifies groups of assets that move together, calculating the true number of independent bets and revealing hidden concentration risks within your holdings.

What is factor exposure analysis and when do I need it for investment thesis validation?

Factor exposure analysis measures your portfolio's sensitivity to market factors like momentum, value, and quality. You need it for investment thesis validation when verifying if actual performance drivers align with your stated strategy or if the portfolio has drifted into unintended risk concentrations.

Can I use this portfolio review approach for financial auditing and risk management?

Yes, this portfolio review approach applies directly to financial auditing and risk management tasks. It processes portfolio weightings and historical return data to perform regression and variance analysis, uncovering true portfolio exposure and hidden risks required for rigorous auditing workflows.

Do I need historical return data to perform factor exposure and variance analysis?

Yes, historical return data is required alongside portfolio weightings to perform factor exposure and variance analysis. The regression calculations depend on historical return inputs to measure asset correlations, identify effective position counts, and quantify exposure to market factors like momentum and value.

What's the best way to uncover hidden risks and true portfolio exposure across asset classes?

The best way to uncover hidden risks and true portfolio exposure is calculating effective position counts and grouping assets by correlation clusters. This variance analysis reveals whether assets moving together represent a single concentrated bet, cutting through portfolio opacity across holdings.