Stock Market Investing, Online Calculators, Valuation Models, and more.

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Basic concepts everyone needs to know, from compound interest to the stock market.

    Index Funds Article

Why index investing makes sense…

What indexes and index funds are…

How to build a simple portfolio…

…and a tiny list of index funds and ETFs.


Tax Calculator …
Capital Gains Calculator
Payroll Tax Calculator (Social Security and Medicare)
Tax Brackets

Roth IRA basics,
income and contribution limits,
investment suggestions,
and a Roth IRA calculator.

401(k) Calculator

Tax-efficient investing

  How to Read an Annual Report

Financial Statements: the Big Picture.

Investment Volatility

Learn volatility basics;
plan your life with a Monte Carlo calculator.

Intro to
Modern Portfolio Theory:
understand diversification and the Efficient Frontier,
find a portfolio with the maximum Sharpe Ratio;
why index funds are theoretically optimal.

Global InterChimp Network…



Calculadora del inter


Calculatrice - Int


Calcolatrice dell'Interesse Composto


Samengestelde Interest Calculator


Calculadora de juros compostos


Value Investing: How Much are Stocks Worth?

Learn the logic of stock valuation
with a discounted cash flows calculator…
plus P/E, P/S and PEG ratios, CAPM, DDM … Buffett’s secret formula (?)
… and a Grahamatron with Artificial Ben-telligence.

Plus: Making Stock Market Predictions

Econ Corner: Basic Economics

Confused by the economy?
Try the guide to Economic Indicators;
trace the components of the Gross Domestic Product;
learn the twisty little logic of Government Spending and Tax Cuts;
use an Inflation Calculator.

Plus: compound interest calculator, more…

Does Dollar Cost Averaging make volatility “work for you”?

Do Fibonacci Numbers predict stock prices?

Is the January Effect for real?

Eggheads & germs, commies & vampires; Pols in space; How rich would Elvis be?

The Rule of 72

How to estimate compound interest, and why the estimate works.

Stock market CAGR-lator

Long-term stock market returns.

Inflation Calculator

Investment Return Calculator



Totally Unrelated Diversions

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