Three rounds. Make them count.

Market Mayhem

Learning guide Instructor

Ready to trade

Read the news. Make your move.

Start with $15,000. Finish three rounds with the highest net worth you can.

$15,000.00 net worth · $0.00 P/L

3:00total run
Net worth$15,000.00$0.00 (0.00%) this run
Available cash$15,000.000% invested
Open profit / loss$0.00$0.00 realized
Market index100.00Equal-weight return · 0.00%

The opening bell is waiting. Pick a stock and get ready.

News moves prices

Your watchlist

The market

Pre-market
Stocks in stable alphabetical order. Changes are since the start of the run.
Company Price Run % Held

Opening bell0:00 elapsed
0 shares heldNo position
Order value$0.00

Start the run to trade.

Know your exposure

Your portfolio

0 positions
Net worth · whole runMax drawdown 0.00%
Open positions with average entry and unrealized profit or loss
Stock Shares Avg. entry Open P/L Action

Your cash is on the sidelines. Select a stock to make your first trade.

Signals, not guarantees

Market wire

Events nudge affected sectors for a limited time. Market noise can still move prices the other way.

    Paper orders · USD

    Order manager

    Limit orders fill at the limit or better. Stops become market orders when an observed price crosses the trigger and may fill beyond it. Orders run only while this session is running, persist in saves, and do not reserve cash or shares. Insufficient funds or shares at execution reject the order.

    Pick up where you left off

    Saved games

    Saved on this browser and device. Loaded games stay paused until you press Resume.

    Manual save

    Autosave

    Autosaves every 10 seconds, after trades, and when pausing. Manual saves remain separate. Saving replaces that slot; loading replaces the current session.

    Trade activity

      Play in your own app window.
      Desktop, Android and iPhone/iPad.

      Make it your game

      Game settings

      Education mode is on. Real-stock search uses an approved pool. Unreviewed listings and live news are unavailable. About the stock policy

      Privacy and stored game data · Licensing and sources

      Multiplayer · Play with friends or host a class game.

      $100–$10,000,000. Applies to a new session; challenge profit targets stay fixed.

      Keep the original 10 or add a seeded mix of companies from the 100-stock catalog. Applies to the next new market.

      15–300 seconds per round. Default: 60 seconds.

      Market Mayhem · Desktop and mobile

      Install the game

      Saves are local to this device and site address. Load your manual save or autosave after reopening. The first download needs a connection.

      Real-world stocks

      Education mode: search the approved stock pool. Other listings cannot be viewed or traded.

      Your first run

      Trade the story.

      Choose your starting cash in Settings (default $15,000), then a timed challenge, timerless Freeplay, or Realistic mode. Challenge targets per round: Easy $150, Normal $300, Hard $600. Round earnings are the change in cash plus open-position value since that round began. Meet the target at the bell to win the round; win all three for an overall victory. A missed target does not end the run.

      1. Read the wire. Headlines name affected sectors and the duration of their price pressure.
      2. Choose your exposure. Select a company, enter shares or a cash preset, then buy. Keep some cash if you expect a dip.
      3. Manage the exit. Watch your entry price and open profit/loss. Sell part of a position or exit it entirely.

      Each timed round adds volatility: opening momentum, a sector shock, then a turbulent close. Prices are uncertain; no signal guarantees a profit.

      Pause freezes time and trading. Switching away automatically pauses. There are no fees, borrowing, or short selling.

      Realistic mode uses provider quotes for paper trading. Find real stocks, then explore candlesticks, volume, and moving averages in the Chart view. Queue USD limit or stop orders and manage them in Open orders. Conditional orders only run while the session is running; stop fills may gap beyond the trigger. Find real stocks to build a watchlist. Quotes refresh before orders; closed markets or stale quotes block trading. There is no timer or earning goal. Real markets continue while you pause. Selected stocks, holdings, and pending-order stocks refresh about once a minute while running, not tick by tick. Check quote timestamps; provider delays and request limits still apply. The first stock search can take up to a minute. Common US listings appear first, but listing availability does not guarantee quote access.

      Freeplay has no rounds, deadline, or earning goal. Trade for as long as you like, then choose End session. At the close, open positions are valued at their last price. Replay the same market for practice or choose New market to prepare a fresh session, then press Start when ready. Replay starts immediately.

      To change difficulty and round duration, choose Timed challenge in Settings. Timerless modes hide those controls. Use Install in the main toolbar for desktop and mobile installation; on iPhone/iPad, use Safari's Share menu and Add to Home Screen. Save before closing. Cloud handoff requires a configured account and confirmation that your game has synced; local saves remain on the current device.

      Economics in everyday life

      Choose a concept for an example. Then look for it in your own decisions.

      Supply and demand Opportunity cost Inflation Incentives
      Optional classroom discussion
      • With $100 available, how much would you invest and how much would you keep in cash?
      • What was the next-best alternative to your last trade? That is its opportunity cost.
      • What would happen to your portfolio if your largest holding lost 20%?
      • Pick a completed trade: what did you expect, what happened, and what would you change?

      The game compresses time and leaves out fees and taxes. A profitable trade can still be risky, and a winning round does not prove a strategy will work in real life.

      Closing bell

      Your run is complete.