Essential Volatility Indicators on OctaTrader: ATR, Bollinger Bands, and Standard Deviation

By:

Published: Jul 25, 2025, 13:43 GMT+00:00

Let's dive into what volatility is, why it's a big deal, and how a trader can harness it with OctaTrader, a proprietary trading platform from the globally trusted broker, Octa.

Have you ever wondered what exactly makes trading tick? Why can a trader jump into the Forex market, place a trade, and potentially walk away with a profit (or a lesson learned)? What’s the secret sauce that makes day trading possible? Spoiler alert: it’s the volatility. Without volatility, trading as we know it wouldn’t exist. It’s the pulse of the market, the ebb and flow that creates opportunities. Volatility drives trading, or maybe trading stirs up volatility—either way, it’s the core of every market move. Let’s dive into what volatility is, why it’s a big deal, and how a trader can harness it with OctaTrader, a proprietary trading platform from the globally trusted broker, Octa.

What Is Volatility and Why Is It Essential for Traders?

In simple terms, volatility measures how much a financial instrument’s price changes over a certain time period. Volatility is like the market’s heartbeat—a strong, fluctuating pulse indicates high volatility, while a slow, steady rhythm suggests low volatility. In the Forex market, volatility essentially tells a trader how much a currency pair like EUR/USD or GBP/JPY is bouncing around, and it is this movement that traders thrive on. In other words, volatility is not just a statistical measure: it’s the very essence of opportunity and risk. Whether you’re a scalper chasing quick pips, a swing trader riding longer trends, or a position trader holding for weeks, volatility impacts your strategy.

Every trader should know or at least partly understand the level of volatility of the instrument that they are currently trading. This knowledge will enable a trader to:

Maximise trading potential. Larger price swings mean more significant potential gains (or losses). High volatility can signal breakout opportunities or strong trends.
Manage risk more effectively. Knowing volatility helps you set adequate stop-loss and take-profit orders. In a volatile market, a trader might need wider stops to avoid getting whipsawed.
Improve entry time. Low volatility might mean a market is ‘resting’ before a big move, while high volatility could signal overbought or oversold conditions.

When professional traders talk about volatility, they often refer to ‘implied annual volatility’. This is a forward-looking measure, representing the market’s expectation of how much an asset’s price will fluctuate over a year.^{^[1]} It is derived from options prices and is annualised to a percentage. While calculating implied volatility often involves complex pricing models, a simpler way for a retail trader to grasp volatility is to look at historical price movements. For example, if a currency pair has consistently moved an average of 80 pips per day over the past month, its daily volatility for that period could be considered to be 80 pips.

However, volatility isn’t just about raw price changes; it’s relative. A trader cannot just look at today’s price swings in isolation. Instead, you must compare price movements against historical data to understand if the market is unusually calm or wildly active. For example, if EUR/USD moves 50 pips a day on average but suddenly jumps 150 pips, that’s high volatility compared to its norm. At the same time, a 100-pip move in a currency pair might be considered high volatility on a quiet trading day, but completely normal during a major economic data release. In other words, volatility can only truly be understood in relation to historical price action.

Measure the Pulse: Volatility Indicators on OctaTrader

Dare to calculate the volatility yourself? In order to do it, a trader needs to calculate the average closing price of a particular asset over a certain period of time, then measure the deviations by subtracting the average from the latest closing price (and square the deviations to avoid negative numbers), then add the squared deviations, divide the result by the time period analysed and take the square root. Doesn’t sound very easy, does it? And it is also quite intricate and time-consuming.

Recognising the crucial role of volatility calculation, Octa, a globally regulated and trusted broker, has equipped its traders with the right tools. Specifically, Octa has developed a proprietary trading platform, OctaTrader, which not only allows traders to place orders in the market, but also provides robust analytical capabilities. For measuring market volatility, OctaTrader has integrated several popular and effective indicators that help a trader gauge the market’s pulse: Bollinger Bands (BB), Average True Range (ATR), and Standard Deviation (SD). Let’s break them down and see how they work in practice.

OCTA TRADER INTERFACE – VOLATILITY INDICATORS (XAUUSD, 30-MINUTE TIMEFRAME)

Source: Octa

Bollinger Bands (BB): These bands consist of three lines: a simple moving average (the middle band) and two standard deviation lines (upper and lower bands) plotted above and below it.^{^[2]}

How it works: The bands widen when volatility spikes and contract when it drops, giving a trader a visual snapshot of market action. When prices touch or break out of the bands, it can signal overbought or oversold conditions, or the potential for a new trend.^{^[3]}
Practical use: BBs are great for spotting anomalous conditions in the market. If the price touches the upper band, it signals that a trading instrument could be overbought and due for a pullback. If it dips below the lower band, it could be oversold, signalling a potential rebound. In other words, BBs are useful for mean-reversion strategies, where traders expect prices to return to the moving average within the bands.^{^[4]}

Average True Range (ART): This indicator measures market volatility by calculating the average range between high, low, and closing prices over a specified period.^{^[5]} It is called ‘true range’ because it accounts for gaps and wild price swings.

How it works: ATR gives a trader a single number to gauge volatility, making it especially practical to set stop-losses.
Practical use: A higher ATR means higher volatility and bigger price swings, so a trader would need to apply wider exit points to avoid getting stopped out prematurely. A lower ATR suggests lower volatility and narrower price ranges.^{^[6]} If the ATR for XAU/USD is 25 pips, a trader might set a stop-loss 1-2 times the ATR (50-100 pips away from the entry point) to give the trade some room to run. ATR is also a great tool for understanding the ‘normal’ daily or hourly movement of a currency pair.

Standard Deviation (SD): This is an advanced statistical indicator that measures how much a financial instrument’s price deviates from its average over a set period.

How it works: SD indicator provides a direct numerical value of volatility. A higher SD means prices are widely dispersed (higher volatility), while a lower one means they’re tighter and are close to the average (lower volatility).
Practical use: SD is useful for comparing the volatility of different assets or different time periods for the same asset. Traders can use it to identify statistically significant price movements and assess the likelihood of the price continuing in a particular direction. If EUR/USD’s standard deviation spikes compared to its 20-day average, it might signal a volatile period ahead, prompting a trader to tighten stops or reduce position sizes.

Volatility isn’t just a number: it’s a signal. By understanding and utilising these powerful volatility indicators, available in the OctaTrader platform, you can gain a deeper insight into market dynamics, decide when to enter or exit trades, adjust position sizes, or brace for big market moves. We understand that in the world of trading, trust is paramount. That is why Octa goes the extra mile to equip traders with the right tools.

Disclaimer: This article does not contain or constitute investment advice or recommendations and does not consider your investment objectives, financial situation, or needs. Any actions taken based on this content are at your sole discretion and risk, and we and Octa do not accept any liability for any resulting losses or consequences.

Octa is an international broker that has been providing online trading services worldwide since 2011. It offers commission-free access to financial markets and various services used by clients from 180 countries who have opened more than 52 million trading accounts. To help its clients reach their investment goals, Octa offers free educational webinars, articles, and analytical tools.

The company is involved in a comprehensive network of charitable and humanitarian initiatives, including improving educational infrastructure and funding short-notice relief projects to support local communities.

Since its foundation, Octa has won more than 100 awards, including the ‘Most Reliable Broker Global 2024’ award from Global Forex Awards and the ‘Best Mobile Trading Platform 2024’ award from Global Brand Magazine.

About the Author

Promotional Contentcontributor

FXEmpire provides its readers and partners with this section in order to share the value proposition and products that may be relevant for FXEmpire

Editors’ Picks