Just practice. These simulators use made-up companies and random numbers — not real stocks, real prices, or real money.
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Interactive Simulators

Learn by doing, not just reading.

Four hands-on tools to practice the ideas from the explainers — buy and sell fake stocks, watch money compound, and see why spreading your money around matters. No real money, no risk, just practice.

Simulator 1

Virtual Trading Simulator

You start with $10,000 in pretend cash and four made-up companies. Buy and sell shares, then click "Advance Day" to see prices move and watch your portfolio change.

Your Portfolio

Day 0 — prices move randomly each time you advance the day.

Fake money · Fake companies
Cash
$10000.00
Total Value
$10000.00
Gain / Loss
$0.00 (0.0%)
CompanyPriceChangeSharesTrade
Total portfolio value
What to notice: Prices jump around a little every day — that's normal. Try buying shares in more than one company and see how it changes how bumpy your total value looks compared to putting everything in one stock.
Simulator 2

Compound Growth Calculator

Drag the sliders to see how starting amount, monthly contributions, time, and return rate affect how much money you'd end up with.

Starting amount $1,000
Monthly contribution $100
Years invested 20 yrs
Average annual return 7%
Future Value
$0
You Contributed
$0
Growth Earned
$0
Total balance What you put in
What to notice: Try setting years to 10 vs. 40 with the same monthly amount. The gap between the gold line and the white line — that's compounding doing the work for you.
Simulator 3

Diversification Visualizer

Each dot below is one possible year of returns for a portfolio, simulated randomly. Change how many different stocks are in the portfolio and watch what happens to the spread of outcomes.

Number of stocks in portfolio 1
Average Return
0%
Worst Simulated Year
0%
Best Simulated Year
0%

Each dot = one simulated year (60 simulations run). Left of the dashed line = a loss that year, right = a gain.

What to notice: With just 1 stock, outcomes swing wildly — huge gains and huge losses are both common. Slide up to 15–20 stocks and watch the dots bunch closer to the average. That's diversification in action — it doesn't guarantee a better average, but it makes the ride a lot less bumpy.
Simulator 4

Market vs. Limit Order Practice

A random 10-day price path gets generated for a fake stock. Set a limit price, then run the simulation to see how a limit order compares to a market order.

Your limit price $47

A limit order only buys if the price drops to this level or lower.

Stock price Your limit price
What to notice: A market order always fills right away, but you don't control the price. A limit order gets you a price you're happy with — but only if the market actually gets there. Sometimes it never does.