Value Investing Archives - InvestorGF Blog

Deep Value Investing: Finding Extremely Undervalued Stocks

Deep value investing looks for stocks trading far below intrinsic worth, often near or below liquidation value. Learn Benjamin Graham's net-net method, NCAV formula, screening criteria, and the risks of value traps.

mac36684 September 29, 2026

Quantitative Investing

Value Factor Investing Explained

A complete guide to value factor investing — what it is, key valuation metrics, why it has historically worked, value traps, famous value investors, and how to build a systematic value strategy.

mac36684 August 17, 2026

Quantitative Investing

Factor Investing: Value, Momentum, Quality and Size

Learn how factor investing works through the four core factors — value, momentum, quality, and size — including definitions, metrics, historical performance, risks, and how to combine them into a portfolio.

mac36684 August 17, 2026

Financial Ratios

Piotroski F-Score: Complete Stock Screening Guide

Learn how the Piotroski F-Score screens for financially strong value stocks. Explore all 9 criteria, the scoring formula, examples, benchmarks, limitations, and how investors use it in stock screening.

mac36684 August 13, 2026