Mean Reversion is an approach based on the idea that prices can move away from an average reference and, under certain conditions, move back toward it.
Orby offers a strategy called Mean Reversion Pro, which applies this idea using statistical bands (Bollinger Bands) with RSI confirmation.
The key phrase is “under certain conditions.” Mean reversion does not mean every price far from its average must come back. Strong trends can persist.
What is the “mean”?
In trading, the mean is usually calculated from historical price data over a defined window.
It can be a simple moving average, exponential moving average, or another statistical reference.
It provides a comparison point for asking how far current price is from recent behaviour.
What does reversion mean?
Reversion is the hypothesis that an extended move may lose strength and return toward its reference.
The rubber-band analogy is common, but markets are not physical rubber bands. They can continue moving in one direction.
How do statistical bands fit in?
Bands can define zones around an average according to price dispersion.
Bollinger Bands are a common example: a central average with upper and lower bands based on standard deviation.
An outer-band touch provides context, not guaranteed reversal.
How does Orby Mean Reversion work?
On Orby, the strategy appears as Mean Reversion Pro and combines two conditions:
- price touches or moves beyond a Bollinger Band (by default, 20 periods and 2 standard deviations);
- RSI (by default, 14 periods) confirms oversold or overbought conditions — below 30 or above 70.
When both conditions appear together, the strategy enters in favour of a return to the mean: CALL near the lower band, PUT near the upper band. It takes at most one entry per candle.
In other words, a band touch alone does not trigger an entry.
Analysis can run on candles, with a configurable timeframe, or on real-time ticks, across the 10 Volatility Indices available on Orby.
Mean Reversion vs trend following
Mean Reversion
Looks for situations where price may return toward a reference after becoming extended.
Trend following
Looks for an established direction that may continue.
Neither is universally superior.
How can RSI help?
RSI can provide context about the strength of recent movement and whether it appears extended.
It does not guarantee reversal.
On Orby, RSI is also part of the Technical Analysis strategy, combined with MACD, moving averages, and Bollinger Bands.
How can Bollinger Bands help?
They visualise price distance and volatility around a mean.
Band width also changes with volatility.
What about moving averages?
A moving average can act as the central reference that a mean-reversion strategy monitors.
Read RSI, MACD, moving averages and Bollinger Bands.
What happens during a strong trend?
This is a major mean-reversion risk.
Price can appear extreme and continue becoming more extreme.
Repeatedly trading against a persistent trend can compound losses if risk is not controlled.
Can Mean Reversion be used on Volatility Indices?
Deriv publishes educational material about applying the concept to Volatility Indices.
That does not mean every setup works on every index.
Read our Volatility Indices guide.
What should I ask about the settings?
Review:
- average type;
- lookback window;
- band calculation;
- required deviation;
- additional filters;
- selected market;
- risk limits.
In Mean Reversion Pro, these choices appear in practical form:
- a profile — Conservative, Balanced, or Aggressive — which only changes signal sensitivity;
- an entry filter, Standard or Selective — Selective adds guards such as a maximum band width, a pause after a loss, and a block when a strong trend runs against the reversion;
- analysis on candles or ticks;
- money management (including a Kelly option), stake, stop loss, and stop gain.
Why is risk important?
A sequence of entries against a persistent movement can become costly without limits.
Read stake, stop loss, and stop gain.
Does backtesting prove the price always returns?
No. Historical tests show historical behaviour, not a law of future markets.
On Orby, Mean Reversion is one of the strategies with backtesting — alongside Higher/Lower and Touch/No Touch — but historical results remain only a reference.
Can Demo help?
Yes. Demo can help you observe what the strategy treats as an extreme and how it behaves when price keeps moving away from the mean.
Frequently asked questions
What is Mean Reversion?
An approach based on the hypothesis that prices may return toward an average after certain deviations.
Does price always return to the mean?
No. Trends can persist.
Do Bollinger Bands guarantee a reversal?
No. They provide context around distance and volatility.
Is Mean Reversion the opposite of trend following?
They are based on different central hypotheses: return toward a reference versus continuation of movement.
Can I configure Mean Reversion on Orby?
Yes. In Mean Reversion Pro you choose the profile, entry filter, analysis mode (candles or ticks), market, and risk settings. The strategy logic itself is ready-made.
The mean is a reference, not a guaranteed destination
Mean reversion is a useful framework for analysing price behaviour, but it is a statistical hypothesis rather than a law.
Automation can make the rules consistent. Risk remains precisely because price may not revert when expected.