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Learn how investing really works

These are the same lessons we teach inside Nest & Grow, in the order we teach them: 22 units that start with what a share of stock actually is and end with building a personal financial plan. They're written in plain English for people who have never invested, and they focus on long-term habits like patience, diversification and low costs rather than predicting the market. Nothing here is personalized financial advice. It's education, so you can make your own decisions with your eyes open.

Want to test yourself? Create a free account to take each unit's quiz, play the games, earn points and practice with a $10,000 simulated portfolio. You can also look up any word in our investing glossary.

Unit 1

How the Stock Market Actually Works

What you're really buying when you buy a share, and why prices move at all.

  • What a share of stock actually is
  • Why prices move: supply, demand, and expectations
  • Where stocks are traded
  • Bull markets, bear markets, and corrections
3 min read
Unit 2

The Power of Compound Interest

The single idea that explains how ordinary savers become millionaires — time.

  • Simple interest vs. compound interest
  • The "time in the market" effect
  • The Rule of 72
  • How fees quietly erode compounding
2 min read
Unit 3

Index Funds vs. Picking Stocks

Why "boring" often wins, and when picking individual companies makes sense.

  • What an index actually tracks
  • Why most professional stock pickers underperform
  • Expense ratios: the hidden number that matters most
  • When picking individual stocks makes sense
3 min read
Unit 4

Reading Financials: Income Statement & Revenue

Make sense of revenue, margins, and profit without needing an accounting degree.

  • Revenue vs. profit — the difference everyone confuses
  • Gross, operating, and net margin explained simply
  • Reading a real income statement line by line
  • Red flags: revenue growing while profit shrinks
2 min read
Unit 5

Reading Financials: Balance Sheet & Debt

Understand what a company owns, owes, and is really worth on paper.

  • Assets, liabilities, and equity
  • Why debt isn't automatically bad
  • The debt-to-equity ratio
  • Cash on hand — why it matters more in downturns
2 min read
Unit 6

Risk & Diversification: Position Sizing

How to size positions and think about risk so no single bad month wrecks your plan.

  • What "risk" actually means in investing
  • Why one stock is the #1 beginner mistake
  • Position sizing basics
  • Correlation — why 10 tech stocks isn't real diversification
3 min read
Unit 7

Risk & Diversification: Building a Diversified Portfolio

How asset allocation and rebalancing turn diversification from an idea into a plan.

  • Asset classes at a glance
  • Age and risk tolerance
  • Rebalancing — why and how often
  • The all-in-one option
2 min read
Unit 8

Retirement Accounts, Explained

401(k)s, IRAs, and the tax-advantaged accounts most people never learn about.

  • 401(k) basics and the employer match
  • Traditional vs. Roth
  • IRAs — what they are and who they're for
  • Contribution limits and why maxing out matters
2 min read
Unit 9

Bonds & Fixed Income

The other half of a balanced portfolio — lending money instead of owning companies.

  • What a bond actually is
  • Bond prices vs. interest rates
  • Credit ratings explained
  • Government vs. corporate vs. municipal bonds
2 min read
Unit 10

Real Estate Investing Basics

From owning a rental property to buying a REIT with a single click.

  • Owning property directly vs. REITs
  • Cap rate — real estate's valuation metric
  • Leverage in real estate
  • Liquidity tradeoffs vs. stocks
2 min read
Unit 11

Options & Derivatives Basics

A careful, plain-language look at a genuinely higher-risk corner of investing.

  • What a call option is
  • What a put option is
  • Why options carry more risk than owning the stock
  • Common beginner mistakes with options
3 min read
Unit 12

Taxes & Investing

The line items that quietly determine how much of your gains you actually keep.

  • Capital gains — short-term vs. long-term
  • How dividends are taxed
  • Tax-loss harvesting explained
  • Why account type changes your tax bill
3 min read
Unit 13

Dividend Investing & Income Strategies

Building a portfolio that pays you along the way, not just at the end.

  • What a dividend actually is
  • Dividend yield vs. dividend growth
  • Dividend Aristocrats
  • The DRIP effect over time
2 min read
Unit 14

International & Emerging Markets

Why the whole world, not just the U.S., might belong in your portfolio.

  • Why U.S.-only investing is its own risk
  • Developed vs. emerging markets
  • Currency risk
  • International index funds as an easy entry point
2 min read
Unit 15

Bubbles & Crashes

History's biggest market manias, and the patterns that repeat every time.

  • The dot-com bubble
  • 2008 — the housing/credit crisis
  • Meme stocks — the GameStop era
  • Spotting bubble behavior in real time
3 min read
Unit 16

Crypto, Framed

Understanding crypto clearly, without the hype — and without pretending it's core investing.

  • What a blockchain actually is
  • Bitcoin vs. Ethereum vs. "everything else"
  • Why crypto is framed as speculative here
  • Custody and security basics
3 min read
Unit 17

Entrepreneurship & Equity

What it actually means to hold equity in a company that isn't public yet.

  • What equity means when you join a startup
  • Vesting schedules
  • Cap tables explained simply
  • Why startup equity is high-risk, high-reward
3 min read
Unit 18

Behavioral Finance & Investor Psychology

The biggest threat to most portfolios isn't the market — it's the investor's own brain.

  • Loss aversion
  • Herd mentality and FOMO
  • Confirmation bias
  • Building a plan that protects you from yourself
3 min read
Unit 19

Budgeting & Emergency Funds

The unglamorous foundation that makes every other unit in this course actually work.

  • Why an emergency fund comes first
  • The 3-6 month rule
  • Budgeting basics
  • Where to keep an emergency fund
2 min read
Unit 20

Insurance & Risk Management

Protecting the financial plan you've built, not just growing it.

  • Insurance as part of a financial plan
  • Health, life, and disability insurance basics
  • How much life insurance actually makes sense
  • Insurance as risk transfer, not investment
2 min read
Unit 21

Reading Market News & Macro Basics

Turn confusing financial headlines into information you can actually use.

  • Interest rates and the Fed
  • Inflation and your portfolio
  • Reading a headline without overreacting
  • Where to actually get reliable news
2 min read
Unit 22

Building Your Personal Financial Plan

Everything from the previous 21 units, brought together into one plan that's actually yours.

  • Pulling together goals, timeline, and risk tolerance
  • Choosing account types based on everything learned so far
  • Setting a realistic contribution rate
  • Building a simple one-page plan
2 min read