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Five investment legends. Four scoring axes. 1,595 stocks scored daily. These guides break down the models, the math, and the practical strategies behind the AlphaStocks scoring system.
What Is a Composite Stock Score?
How AlphaStocks combines Quality, Value, Momentum, and Timing into a single 0-10 rating for 1,595 stocks.
5 min read
Piotroski F-Score Explained
The 9 financial health signals behind the Piotroski F-Score and how AlphaStocks uses them to assess company quality.
5 min read
Graham Fair Value: How to Estimate Intrinsic Worth
Benjamin Graham's formula for intrinsic value, sector-specific adaptations, and how AlphaStocks applies it to modern markets.
5 min read
Buffett Quality Investing: Owner Earnings, Moats & ROE
How Warren Buffett evaluates business quality using owner earnings, ROE consistency, competitive moats, and buyback discipline — and how AlphaStocks scores it.
5 min read
Lynch PEG Ratio: Growth at a Reasonable Price
Peter Lynch's PEG ratio identifies undervalued growth stocks. Learn the formula, dividend-adjusted PEG, Lynch's growth categories, and how AlphaStocks applies it.
5 min read
Greenblatt Magic Formula: Earnings Yield & Return on Capital
Joel Greenblatt's two-factor ranking system for finding cheap, high-quality stocks. Percentile ranking across 1,595 stocks, sector exclusions, and role in the Value axis.
5 min read
What Are Value Traps and How to Avoid Them
Why cheap stocks sometimes keep falling, and how the Timing axis protects against value traps in stock screening.
4 min read
How to Read Stock Scores: A Beginner's Guide
What the 0-10 score means, how to interpret verdict labels, and a step-by-step guide to using the AlphaStocks screener.
4 min read
How to Use the AlphaStocks Stock Screener
Step-by-step guide to filtering 1,595 stocks by composite score, sector, P/E, ROE, dividend yield, and 20+ other criteria.
5 min read
Financial Metrics Glossary
Definitions and formulas for P/E ratio, ROE, EPS, EBIT, PEG ratio, ROIC, and every key metric used in stock analysis.
6 min read
How Sector Calibration Works
Why banks and REITs are scored differently, and how 7 sector profiles adjust scoring weights, Piotroski signals, and fair value models.
5 min read
Best Stock Screeners 2026 — Free & Paid Tools Compared
Honest comparison of 6 stock screeners: AlphaStocks, Finviz, Morningstar, Simply Wall St, Stock Analysis, and Yahoo Finance. Features, pricing, and which is right for you.
10 min read
Large Cap vs Mid Cap vs Small Cap — Which Stocks Should You Own?
Compare large-cap (S&P 500), mid-cap (S&P 400), and small-cap (S&P 600) stocks: historical returns, risk profiles, and which market cap segment fits your portfolio.
7 min read
MidCap Investing: Why S&P 400 Stocks Deserve Your Attention
MidCap stocks (S&P 400) have historically outperformed both large-caps and small-caps. Learn why, the risks, and how to screen them effectively.
7 min read
What Is the S&P 1500? The Complete Investor Guide
The S&P Composite 1500 combines the S&P 500, MidCap 400, and SmallCap 600 — covering 90% of US market capitalization.
5 min read
Small Cap Value Investing — Finding Hidden Gems in the S&P 600
Small-cap value stocks have historically delivered the highest returns of any equity style. Learn how to find quality small-cap value stocks and avoid the traps.
7 min read
Do MidCap Stocks Beat Large Caps? A Data-Driven Analysis
S&P MidCap 400 has outperformed S&P 500 over most 10+ year periods. We analyze the data: when midcaps win, when they lose, and what drives the difference.
7 min read
ADR Stocks Explained — How to Invest in Foreign Companies on US Exchanges
American Depositary Receipts (ADRs) let you buy foreign stocks like TSM, NVO, and ASML on US exchanges. Learn how ADRs work, their risks, and how to evaluate them.
7 min read
How to Find Undervalued Stocks — 5 Proven Methods
Learn 5 proven methods to find undervalued stocks: Graham's intrinsic value, PEG ratio, earnings yield, free cash flow analysis, and multi-model screening.
8 min read
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See the full scoring formula or jump straight to the screener.
AlphaStocks provides algorithm-generated research tools and educational content, not personalized investment advice. Always conduct your own due diligence and consult a qualified financial adviser before making investment decisions.