Choose an amount and a period, and see how it would have moved in a test series shaped like a stock market index. This is an exercise about the past.
€1,000 tracking this test series over 90 days would be worth at the end
€950.42Test data
▼Would have fallen €49.58−4.96%
Excludes dividends, fees, taxes and the effect of the exchange rate.
2 Oct 2025Starting point: €1,00031 Dec 2025
With more perspective
Of the 1,196 periods of 90 days in the five years of the test series, 40% ended in a loss. The best rose 25.8%; the worst fell 20.9%.
How it is calculated: daily closes of a test series shaped like a stock market index, not the real S&P 500. Without dividends or the effect of the exchange rate. Past data does not indicate future results.
Test data: these are not real index figures. They are here to show how the exercise works.
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Market summary
A single figure says little. Compare several markets, change the period and notice what moves together and what does not.
S&P 500 SPX
US stock market index
5,000.00 points
▲Up +2.01%+98.43 in the last session
Test seriesTest data
Change over one month ▲ +3.37%(+162.85)
5,000.0031 Dec 2025
4,8004,9005,000
28 Nov 202531 Dec 2025
Move the pointer over the chart, or focus it and use the arrow keys, to see each value.
Closing and 52-week figures
Previous close
4,901.57
52-week high
5,317.85
52-week low
3,898.85
Major indices
Choose an index to see it in the chart.
Currencies and bonds
Euro/dollar EURUSD
US dollars per euro
1.1199
▼Down −0.12%
US 10-year Treasury US10Y
Annual yield
4.98%
▼Down −0.07 pp
It is here to help you learn to read an index, not to decide whether to buy or sell. Each real series is published on its own schedule: every figure shows the date of its latest close. VIX source: Cboe, via FRED. Euro/dollar and US Treasury: Federal Reserve, via FRED. Updated once a day.
Test data: these are not real index figures. They are here to show how the exercise works.
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