Hull Moving Average explained

Moving Averages

What Hull Moving Average measures

The Hull Moving Average, developed by Alan Hull, is specifically engineered to solve the fundamental tradeoff every moving average faces: smoothing versus lag. Standard moving averages that are smooth enough to filter noise are also slow enough to lag price significantly. HMA uses a clever combination of weighted moving averages (a longer WMA, a shorter WMA at half the period, and a square-root-period smoothing pass) to stay both notably smoother AND notably closer to live price than a standard SMA or EMA of the same period.

How Hull Moving Average readings are interpreted

Because it hugs price more closely than conventional moving averages, HMA reacts to genuine trend changes faster while still filtering out a meaningful amount of noise. Price crossing the HMA, or the HMA changing slope, are read the same way as with any other moving average — just with less lag before the signal appears.

Conventional Hull Moving Average levels

Price crosses above HMA: bullish signal, generated earlier than the equivalent SMA/EMA crossover would fire
HMA slope turning from falling to rising: an early trend-change read
HMA hugging price closely during a strong trend: confirms trend strength with minimal separation

Where Hull Moving Average works, and where it does not

Useful in essentially any context where a standard moving average would be used, but where reducing lag specifically matters — trend-following entries, dynamic support/resistance, or as a faster-reacting trend filter layered alongside a slower, more traditional moving average.

Indicators commonly read alongside Hull Moving Average

EMA/SMA: A common approach pairs a fast HMA with a slower traditional MA for a lag-reduced version of a classic dual-moving-average crossover system
ADX: HMA slope changes are more trustworthy as trend signals when ADX confirms a genuine trend is present
Supertrend: Both are designed to reduce whipsaw/lag relative to simpler tools — worth comparing signals between them

Known limitations of Hull Moving Average

Reduced lag comes with a tradeoff of being somewhat more prone to noise-driven whipsaws than a standard, slower-moving average
The underlying formula (nested weighted averages with a square-root smoothing pass) is considerably less intuitive to explain than a simple SMA
Less universally used than SMA/EMA, so fewer other market participants are watching the same HMA levels

Hull Moving Average in practice

Use in place of a standard MA specifically when reducing lag matters more than maximum smoothness
Works well as the "fast" line in a dual-moving-average crossover system, paired with a slower traditional MA
Because it's more reactive, expect somewhat more frequent signals than an equivalent-period SMA — size position/confidence accordingly
A reasonable default choice for trend-following systems that have found standard EMAs too laggy for their taste

Other moving averages

Double Exponential Moving Average
Triple Exponential Moving Average
Volume Weighted Moving Average
SMA — Simple Moving Average

Testing ideas built on Hull Moving Average

A reading of Hull Moving Average can be written as an exact rule and checked against historical data — as a full strategy with entries, exits and costs, or as a single condition and what followed it:

How to backtest a trading strategy without code
Event analysis: what follows a market event

Plot it yourself. Add this indicator to a chart, change every parameter and watch the line move, then backtest how the rule would have behaved on historical data — free on the S&P 500 ETF, no card.

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This is reference material, not advice. It describes what each indicator measures and how its readings are conventionally interpreted. Nothing here is a recommendation to buy or sell anything, and no indicator predicts future prices. GU Analyser is an analytical tool — no money is ever traded here.