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


(Start Here!)
Basic concepts everyone needs to know, from compound interest to the stock market.
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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.
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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
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Financial Statements: the Big Picture.
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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