Market Lab

Real companies. Real trade-offs. Your call.
Start · Year 0
Portfolio value
$1,000
$1,000
Earns 3.0% a year
$1,000
$50 added monthly
$1,000
Inflation 0.0%
$0.00
0 trades

You against doing nothing

The other line buys the world fund on day one and never trades again
Your portfolio

Set up a new run

Everyone using the same seed gets the same market

Advance time

120 months to go

The economy

    Where your money is

    Headlines

    • Nothing has happened yet.

    The market

    Real companies, simulated prices · NZD ·
    Asset Price 1 month History You hold Trade

    The first number is roughly what the real thing returned in the past. The second is what this simulation expects from here — and it is deliberately much lower for the past winners. , and it is the most useful thing on this page.

    What this is teaching you

    Tap any underlined word anywhere in the app for a plain-English explanation

    Nvidia returned about 33% a year for twenty years. This simulation expects roughly 9% from it. That is not pessimism — a price already reflects how good everyone knows the company is.

    Ethereum can move 85% in a year. It is not expected to return more than shares over time — you are taking on far more risk for the same expected reward.

    Money left alone grows on its own growth. Ten years of an ordinary return usually beats a few brilliant trades, which is why the benchmark line is so hard to beat.

    Fisher & Paykel, Mainfreight, Meridian and a2 Milk all ride the same NZ economy. One NZ fund plus one world fund is duller and genuinely safer.

    A $3 flat fee on a $50 trade is 6% gone before you own anything. The same fee on a $5,000 trade is 0.06%. Trade small and often and the fees quietly take your returns.

    You will be in it from your first payslip for about 45 years. The fund you pick is the biggest money decision you will ever make, and most people never make it.

    Class leaderboard

    For teachers — paste everyone's codes, one per line