Options · Swing trading · Prop firms · Dividends · Earnings · Economy

Trading and investing, with the arithmetic shown

Every page answers one question a trader or investor actually asks, works the numbers through on a hypothetical account, and says where the answer stops holding. Read the analysis, look up a term, take a course, or run a calculator.

  1. Dividends Special Dividends Tell You Little About Next Year's Payout Yields that include a special dividend overstate future income, so judge a stock on its regular dividend and count specials as variable.
  2. Prop Trading Prop Firm Evaluation Fees: Budget Them Like a Business Cost Evaluation fees pay off for a trader whose strategy already fits the rules; set a quarterly fee budget and stop when it is spent.
  3. Options How Far Out to Buy Calls: More Time Than Your Idea Needs When buying calls, pick an expiration well past the date your idea needs, then compare the cost of each day of time.
  4. Prop Trading Prop Firm Consistency Rule: How to Trade Your Best Day Under a consistency rule a big day raises the profit you need before a payout, so cap daily gains near the rule's limit.
  5. All analysis →

Free courses

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  1. Beginner · 4 lessonsHow to Evaluate a Stock: A Starter CourseInvestors who have bought a fund or two and now want to judge a single company from its own filings.
  2. Beginner · 4 lessonsInvestor Protection Basics: Safeguarding Your Money and AccountAnyone opening a brokerage account, or already holding one, who wants to know what protects it and where the gaps are.
  3. Intermediate · 4 lessonsGrowth Stocks: Measuring Growth That LastsInvestors who can already read an income statement and want a method for judging a company whose sales are climbing fast.
  4. Beginner · 4 lessonsDiversification: Building a Portfolio That Holds UpInvestors with a handful of holdings who want a plan for the portfolio as a whole, and a way to tell whether it is really spread out.
  5. Beginner · 4 lessonsOptions for Beginners: Calls, Puts and Your First TradeStock investors who have never placed an options trade and want the mechanics in order before the first order goes in.
  6. Beginner · 4 lessonsDividend Income Portfolio: Building One That Pays YouInvestors who want a stock portfolio that produces regular cash, whether they reinvest it now or plan to spend it later.

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