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EMA
Exponential moving average — trend, reacts faster than SMA.
Che cos'è
Exponential moving average — trend, reacts faster than SMA.
The exponential moving average (EMA) is a recursive average that updates by blending today's close into yesterday's EMA via a smoothing factor α = 2 / (N + 1). Older observations decay exponentially rather than dropping off a fixed window, so the EMA reacts faster to new price action than the equivalent-length SMA.
EMAs are the building block for many other indicators: MACD is the difference of two EMAs, the signal line is an EMA of MACD, and many strategies use a 9 / 21 / 50 EMA stack to gauge short- vs. medium-term trend.
The trade-off versus SMA: faster response in trending markets, but more whipsaws in chop. The smoothing factor α is unitless — the same EMA(20) on 1-minute bars and on daily bars uses the same recursion.
EMA_t = α · P_t + (1 - α) · EMA_{t-1}, where α = 2 / (N + 1)Leggi la definizione completa di Exponential moving average (EMA) nel glossario →
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BTC/USDT su Binance con questo indicatore precaricato. Fornito da TradingView.
Grafico di TradingView. Lo studio integrato è mostrato a titolo illustrativo; il motore Noon Barbari calcola i propri valori.
Parametri
| Parametro | Predefinito | Intervallo |
|---|---|---|
| Period | 20 | 2 – 800 |
Campi di output
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Strategie correlate
Modelli pronti ed eseguibili che usano questo indicatore. Aprine uno per ispezionarlo o testarlo.
EMA fast/slow crossover strategy
Catch sustained moves by going long when the fast EMA crosses above the slow EMA.
EMA breakout with ATR sizing strategy
Cross above a 20-bar EMA, trail the position with ATR-aware stop bands.
RSI dip with trend filter strategy
Buy oversold RSI dips, but only when price is still above the 50 EMA.
Approfondisci sul blog
Articoli di approfondimento su questo indicatore e su come usarlo.
SuperTrend vs EMA crossover: we tested both on 50 coins so you don't have to argue about it
Two of the most popular trend-following systems, identical conditions, fifty crypto pairs, an out-of-sample honesty check — and a scoreboard that isn't close this month.
EMA vs SMA: which actually wins on crypto?
Everyone has an opinion. Few have run the numbers. Here's the head-to-head on 4h BTC/USDT across multiple regimes, with the formula, the trade-offs, and when to pick which.
Which crypto strategy families survive out-of-sample? All 10, ranked
We tuned ten classic strategy families on twenty coins, then ran each tuned winner once on data it had never seen. Only two families kept a positive median edge. Here is the full ranking — including the three that were negative before fees even bit.
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