sPortfolio: Stratified Visual Analysis of Stock Portfolios

TL;DR

sPortfolio is a novel visualization tool designed to provide a comprehensive, multi-level analysis of stock portfolios based on factor data, aiding portfolio managers in market trend understanding and strategy analysis.

Contribution

This paper introduces sPortfolio, the first visualization system focused on exploring factor investment data across multiple analysis levels.

Findings

Effective in providing holistic market insights

Facilitates understanding of portfolio strategies

Demonstrated through three case studies

Abstract

Quantitative Investment, built on the solid foundation of robust financial theories, is at the center stage in investment industry today. The essence of quantitative investment is the multi-factor model, which explains the relationship between the risk and return of equities. However, the multi-factor model generates enormous quantities of factor data, through which even experienced portfolio managers find it difficult to navigate. This has led to portfolio analysis and factor research being limited by a lack of intuitive visual analytics tools. Previous portfolio visualization systems have mainly focused on the relationship between the portfolio return and stock holdings, which is insufficient for making actionable insights or understanding market trends. In this paper, we present sPortfolio, which, to the best of our knowledge, is the first visualization that attempts to explore the factor investment area. In particular, sPortfolio provides a holistic overview of the factor data and aims to facilitate the analysis at three different levels: a Risk-Factor level, for a general market situation analysis; a Multiple-Portfolio level, for understanding the portfolio strategies; and a Single-Portfolio level, for investigating detailed operations. The system's effectiveness and usability are demonstrated through three case studies. The system has passed its pilot study and is soon to be deployed in industry.