Each candle is one trading day: green for a gain, red for a loss, the number says how much. The candles are not drawn at the price level —
that would give the game away. You get one trade: buy at the start of some day, sell at the end of some later (or the same) day, and pocket the
difference. With hindsight. Click a candle to buy and sell on that day, drag across candles to choose a window, or pull its edges.
Place the trade when you are happy; the chart then shows what your money did. You learn the best possible profit and where you stand.
You may also sit it out — buy and sell at the same instant, profit exactly 0 — which on a bad week is the best trade there is.
You may trade again (your best counts), the clock breaks ties,
and only a first trade that is already the best possible earns the
★ blind optimum badge.
Later levels quote daily moves in percent: gains compound, and so do losses.
Keys: ←/→ slide the window, shift+arrows move the sell day, alt+arrows the buy day,
n/p next/previous level, c clear, enter place the trade.
your trade–
profit–
market open0:00
buysell
click a day · drag across days · pull the edges · enter trade