The best moving average for ETF trading depends on your holding period, but the 200-day simple moving average is the standard for long-term trend following. Shorter averages suit faster traders, and there is no single number that beats all others.
SMA versus EMA
A simple moving average (SMA) is the plain average of the last N closing prices. An exponential moving average (EMA) weights recent prices more heavily, so it turns sooner. For ETF trend following, the 200-day SMA is the benchmark most rules are built on, because it is slow enough to ignore noise. Traders who want earlier entries and exits often swap in an EMA or a shorter lookback, accepting more whipsaw trades in exchange.
Common settings and what they are for
- 50-day. Short-term trend; used for entries, exits, and as the fast line in a crossover.
- 100-day. Intermediate trend; a middle ground between noise and lag.
- 200-day. Long-term trend; the classic invest-versus-cash filter. See our documented 200-day rule example.
Moving average crossovers
A crossover strategy holds the ETF while a short average is above a long average and moves to cash when it flips. The 50-day crossing the 200-day is the most common version. The trade-off is built in: crossovers are always late, so they give back part of every move at the top and bottom, and they whipsaw in choppy markets. The point is discipline, not prediction.
How to pick the right one
Match the lookback to how long you plan to hold. A day or swing trader might use a 20-day average; a long-term investor is better served by the 200-day. The only way to know whether a setting actually helped a given ETF is to test it. Our free backtest calculator does exactly that: paste the ETF’s price history, set the lookback, and see whether the rule beat buy-and-hold.
Test before you trust
Do not take any moving average on faith. Replay it on your own data first, and watch how it behaves in both trending and range-bound periods. The backtest calculator will show you the win, the whipsaws, and the drawdowns, so the choice is made on evidence rather than habit. For the broader picture, see our signal comparison guide.
FAQ
EMA or SMA for ETFs?
Both work. The simple moving average (SMA) weights every day equally and is the classic choice for the 200-day trend filter. The exponential moving average (EMA) reacts faster to recent prices. For long-term trend following on ETFs, the 200-day SMA is the standard; for shorter, faster signals, traders often prefer an EMA.
What moving average settings are best for ETFs?
Common settings are the 50-day for short-term trend, the 100-day for intermediate, and the 200-day for long-term trend. There is no magic number; longer lookbacks give fewer, slower signals with fewer whipsaws, and shorter lookbacks react faster but trade more.
What is a moving average crossover strategy?
A crossover strategy buys when a shorter moving average crosses above a longer one (a golden cross) and sells or moves to cash when it crosses below (a death cross). A common ETF version is the 50-day crossing the 200-day.
How do I choose a moving average for ETF trading?
Match the lookback to your holding period. If you trade weekly, a 20- or 50-day average may fit. If you invest for years, the 200-day is the classic trend filter. Test any choice on your own ETF before trusting it.
Disclaimer: Educational content only, not financial advice. Fund fees and details change; verify them on the issuer’s site before investing. Full disclaimer and affiliate disclosure.
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