The 9 EMA and 20 EMA are two of the most commonly paired moving averages in short-term trading — one fast, one slower — used together rather than as competing choices.
Side-by-Side Comparison
| 9 EMA | 20 EMA | |
|---|---|---|
| Reaction speed | Fast — reacts quickly to recent price | Slower — smooths out more noise |
| Noise | More whipsaws in choppy conditions | Fewer false signals, but more lag |
| Common use | Short-term trend/momentum filter | Broader trend confirmation |
See what the 9 EMA is for the base concept if you're not already familiar with it.
The Crossover
When the 9 EMA crosses above the 20 EMA, that's commonly read as a short-term bullish signal; a cross below is read as bearish. Like any single signal, a crossover on its own is not a guarantee — it's frequently combined with volume or a broader trend read before being treated as meaningful.
Both EMAs are, by definition, looking backward at recent price. A crossover confirms that momentum has shifted — it does not predict that shift in advance.
Why Watch Both Together
Using both gives a fast read (9 EMA) checked against a slower, steadier one (20 EMA), rather than reacting to every small wiggle the fast average makes. Price holding above both is a stronger trend signal than price holding above only the faster one.
See Both EMAs on a Live Chart
ScalpCharts plots the 9 and 20 EMA together on real intraday charts.
Open ScalpCharts