European Indices
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The DAX so far (Germany's largest listed companies: 30 until September 2021, 40 since), as 1-minute quotes of a DAX index CFD from HistData.com, January 2011 to October 2026 without 15 June 2020 to 1 December 2023 (the files hold another index there), tested in the Xetra cash session (09:00 to 17:30 Frankfurt). CFD quotes, not exchange prices.
01The tests
| Test | Instrument and data | Variants tried | Passed every gate | Verdict |
|---|---|---|---|---|
| DAX Fibonacci Pullback Strategy Backtest: a YouTube Trend Day-Trading Rule, 2011 to 2026 | DAX index CFD quotes (HistData, 1-minute) | 2 | 0 | Buried · No proven edge |
| DAX Opening Range Breakout Backtest: the First 15 Minutes, 2011 to 2026 | DAX index CFD quotes (HistData, 1-minute) | 4 | 0 | Buried · No proven edge |
| RSI(2) Strategy on the DAX: Does Connors' Rule Work Outside the US? | DAX index, daily closes (Yahoo Finance), dividends included | 2 | 0 | Buried · No proven edge |
8 variants tried across 3 full write-ups, 0 passed every gate. Verdicts follow the protocol: Buried means at least one gate failed; “No proven edge” means a statistically convincing edge was not demonstrated, not that none exists.
02How these were tested
The DAX as 1-minute quotes of an index CFD (HistData.com, "GRX/EUR"), January 2011 to 30 October 2026, without volume. The file times were checked against the activity at the 09:00 Frankfurt open and corrected (New York time until 2018, Frankfurt minus six hours from 2019); from 15 June 2020 to 1 December 2023 the files hold another index (at the level of the Euro Stoxx 50), so those days are left out of every test; minutes missing on other days are never filled, and every verdict is recomputed without the days that have them. Costs are charged in index points on every trade. The price files are not republished. One daily test uses the DAX closes from Yahoo Finance (^GDAXI), 30 December 1987 to 20 October 2026: a performance index that includes dividends, checked against these quotes, with costs of 0.04% of the price per round trip.
03What is not here yet
DAX futures (FDAX) with exchange prices, the Euro Stoxx 50, the FTSE 100 and the CAC 40.