Question 1

What is SMMA?

Accepted Answer

The Smoothed Moving Average (SMMA) is a variant of the exponential moving average that uses a longer effective lookback. It produces an extremely smooth line, filtering out most short-term noise while still tracking the broader trend. SMMA is equivalent to an EMA with period (2N - 1).

Question 2

How it works

Accepted Answer

``` First bar: SMMA = SMA(N) Next bars: SMMA = (SMMA_prev × (N - 1) + Close) / N ``` This recursive formula means SMMA gives very low weight to each new price change, resulting in high smoothness.

Question 3

Key features

Accepted Answer

- **Ultra-smooth** — far smoother than SMA or EMA of the same period. - **High lag** — the trade-off for smoothness is slower reaction to trend changes. - **Equivalent to long EMA** — SMMA(14) behaves like EMA(27). - **Used in MetaTrader** — SMMA is one of the four standard MA types in MT4/MT5.

Question 4

Trend direction

Accepted Answer

- Price above SMMA — long-term uptrend. - Price below SMMA — long-term downtrend.

Question 5

Support / Resistance

Accepted Answer

- SMMA acts as a strong dynamic support/resistance level due to its smoothness.

Question 6

Parameters

Accepted Answer

| Parameter | Default | Description | |-----------|---------|-------------| | Period | 20 | Lookback length |

Question 7

Example conditions

Accepted Answer

| Condition | Meaning | |-----------|---------| | `close > SMMA(20)` | Price above smoothed average | | `EMA(10) cross_over SMMA(50)` | Fast EMA crosses above slow SMMA — bullish | | `close cross_under SMMA(50)` | Price breaks below SMMA — strong bearish signal |

Question 8

When to Use SMMA vs SMA vs EMA

Accepted Answer

| Factor | SMA | EMA | SMMA | |--------|-----|-----|------| | Smoothness | Medium | Low-Medium | Very High | | Lag | Medium | Low-Medium | High | | False signals | Medium | More | Fewer | | Best timeframe | Any | Intraday-Swing | Daily-Weekly | | Common use | General purpose | Trend following | Trend identification | Choose SMMA when you want to identify the **major trend direction** and filter out noise. It works best as a background filter rather than a signal generator.

Question 9

EMA Equivalence

Accepted Answer

A key insight: SMMA(N) is mathematically equivalent to EMA(2N - 1): | SMMA Period | Equivalent EMA | |-------------|---------------| | SMMA(7) | EMA(13) | | SMMA(14) | EMA(27) | | SMMA(20) | EMA(39) | | SMMA(50) | EMA(99) | This means you can replicate SMMA behavior using a longer EMA, which is useful if your charting tool doesn't support SMMA natively.

Question 10

Tips

Accepted Answer

- Use SMMA for identifying the major trend on higher timeframes. - Combine with faster indicators (EMA, RSI) for entry timing within the SMMA-defined trend. - SMMA crossovers produce fewer signals but they tend to be more reliable. - For scalping, SMMA is too slow — use EMA, DEMA, or TEMA instead.