Why the DAX RSI at 75 Is Not a Sell Signal for Trend Traders
to Investing.com, the DAX is grinding toward all-time highs with the daily RSI sitting at 75. That number is lighting up "overbought" alarms across every retail charting forum.
Kyle Donnelly, Algorithmic Trader & Market Technician·updated August 31, 2026

I'm not buying it. RSI at 75 near an ATH is a data point, not a signal. I've spent enough years backtesting the German index at all-time highs to know that an overbought oscillator in a persistent uptrend is not a short trigger. The retail trader sees the number, opens a short, and wonders why the trend kept running for three more weeks.
Why the "RSI Over 70 = Sell" Framework Is Broken
Mean reversion is not a constant. It's regime-dependent behavior. When momentum has structural drivers behind it — earnings revisions, capital flow rotation, easing rate expectations — RSI stays elevated for weeks. The indicator is bounded. It measures the magnitude of recent gains against a fixed lookback window. It tells you speed, not exhaustion.
If you want to fade an ATH breakout on the DAX, you need confluence:
- A bearish divergence on a higher timeframe (price at ATH, RSI below the prior swing high)
- A clean break of the lower-high structure on the index itself
- A volume climax with a visible rejection candle
None of that comes from an RSI reading alone. An oscillator stripped of price structure is noise dressed up as analysis.
The Parallel Setup in AUD/CAD
While everyone obsesses over the DAX RSI, AUD/CAD is quietly compressing inside a symmetrical triangle on the daily chart, per a recent CryptoRank analysis. Several weeks of price action have squeezed into a narrowing range, and the pair is now testing the upper trendline.
This is the opposite regime from the DAX. The German index is post-breakout momentum at stretched levels. AUD/CAD is pre-breakout compression at neutral. The setup demands patience: wait for a decisive daily close above resistance, ideally on above-average volume. The triangle's height projects the measured-move target; the inside of the pattern sets the stop. Rejection, and price likely retests the 50-day moving average.
The fundamentals matter for sizing. Iron ore and coal drive the Aussie; crude oil drives the Loonie. Divergences in those commodity trends — plus the RBA/BoC rate differential — will inject volatility regardless of how clean the triangle looks on the chart.
What I'm Actually Watching on the DAX
The DAX at ATH means the index has already absorbed a lot of good news. Three things will tell me whether this is trend continuation or distribution:
1. Breadth confirmation. If only a fraction of DAX components are at their own highs, the index ATH is narrow and fragile. Broad participation means the move has fuel behind it.
2. Volume profile. Rising volume into new highs signals accumulation. Declining volume into new highs signals exhaustion and primes a sharp reversal.
3. RSI divergence versus RSI extension. Price at ATH with RSI below the prior swing high is bearish divergence. Price at ATH with RSI matching or exceeding the prior reading is just extension — not a reversal trigger.
If breadth narrows and volume contracts into the push, I'll trim exposure. If breadth expands with volume confirmation, I ride the trend and use the RSI reading to gauge when to tighten stops — never to initiate shorts.
The market is a probability matrix, not a crystal ball. An RSI at 75 on the DAX is a conditional probability, not a 100% reversal and not a 100% continuation. Edge comes from layering confluence, managing drawdown, and refusing to treat a bounded oscillator as a timing tool. Anyone selling you a "sell signal" off a single RSI reading has never looked at the sample-size data from a real backtest.