Open any trading platform and you’ll find dozens of indicators in the menu — wavy lines, histograms, clouds of all colors. Each one claims to predict the market. The truth is simpler: each indicator answers one specific question about price behavior. Learn what question each indicator answers, and you’ll never be confused by an indicator panel again.
Trading involves risk. Binary options and forex trading involve substantial risk of losing your capital. This glossary is for educational purposes only. Never trade money you cannot afford to lose.
How to Use This Glossary
Each term includes a plain-English definition, a real trading example, and a link to a detailed strategy guide. Indicators are grouped by type — momentum first, then trend, then volatility.
Momentum Indicators
RSI (Relative Strength Index)
RSI measures the speed and change of price movements on a scale of 0 to 100. Above 70 = overbought (price may reverse down). Below 30 = oversold (price may bounce up). RSI is the most popular indicator for binary options trading because it gives clear, actionable levels. The most profitable RSI setup is divergence — when price makes a higher high but RSI makes a lower high, signaling an impending reversal (learn RSI in depth →).
Example: 5-minute EUR/USD chart. RSI hits 78 (overbought). Price is at resistance. You enter a PUT with 15-minute expiry. RSI crossover back below 70 is your confirmation — but many traders enter on the level alone.
Settings: Default period is 14 (RSI(14)). For binary options on short timeframes (5-min), some traders use RSI(7) or RSI(9) for more signals. The tradeoff: fewer periods = more signals but more false ones (trade RSI divergence →).
MACD (Moving Average Convergence Divergence)
MACD shows the relationship between two moving averages of price. It has three components: the MACD line (12-period EMA minus 26-period EMA), the signal line (9-period EMA of the MACD line), and the histogram (the difference between them). The most common signal: when the MACD line crosses above the signal line (bullish) or below (bearish). MACD works best in trending markets (learn MACD in depth →).
Example: On the 15-minute chart, the MACD line crosses above the signal line while both are below zero. This is a bullish signal. You enter a CALL, expecting upward momentum to continue for 30-60 minutes.
Stochastic Oscillator
A momentum indicator that compares the current closing price to the price range over a set period (default 14). Like RSI, it has overbought (above 80) and oversold (below 20) levels. The Stochastic tends to be more sensitive than RSI — it crosses overbought/oversold levels more frequently, which means more signals but also more false ones (trade Stochastic for binary options →).
Williams %R
Similar to Stochastic but inverted — it measures on a scale of -100 to 0. Above -20 = overbought. Below -80 = oversold. Williams %R is more sensitive to price changes than RSI and often provides earlier reversal signals. However, earlier doesn’t always mean better — more sensitivity means more false signals (learn the Williams %R strategy →).
Trend Indicators
Moving Average (MA)
The average price over a specific period that smooths out price noise to show the trend direction. A 20-period MA on a 5-minute chart shows the average price of the last 20 candles (100 minutes). Two types: Simple (SMA) — equal weight to all periods, and Exponential (EMA) — more weight to recent prices. The most basic signal: price above MA = uptrend, price below MA = downtrend (trade MA crossover →).
Example: EUR/USD price stays above the 20-period EMA on the 5-minute chart for 2 hours. The trend is up. Every pullback to the EMA is a potential buy opportunity. When price closes below the EMA, trend may be changing.
Ichimoku Cloud
A complete trading system in one indicator. It shows support/resistance, trend direction, momentum, and potential reversal zones — all at once. The “cloud” (Kumo) is the shaded area between Senkou Span A and B. Price above the cloud = uptrend. Price below = downtrend. Price inside = consolidation. The cloud also projects future support/resistance levels (learn the Ichimoku strategy →).
Example: On the 1-hour chart, USD/JPY breaks above the Ichimoku cloud and the cloud turns green (bullish). Tenkan-sen (fast line) crosses above Kijun-sen (slow line). All signals align for a long entry.
Parabolic SAR
A trend-following indicator that places dots above or below the price. Dots below price = uptrend (buy signals). Dots above price = downtrend (sell signals). When the dots flip from one side to the other, it signals a potential trend change. Parabolic SAR works best in strong trending markets and gives many false signals in ranging/consolidation markets (learn the Parabolic SAR strategy →).
Volatility Indicators
Bollinger Bands
Three lines: a middle band (20-period moving average), an upper band (2 standard deviations above), and a lower band (2 standard deviations below). The bands expand and contract based on volatility. Wide bands = high volatility. Narrow bands (squeeze) = low volatility — and an impending breakout. Price touching the upper band = potentially overextended. Price touching the lower band = potentially oversold (trade the Bollinger squeeze →).
Example: Bollinger Bands narrow to their tightest range in 2 hours on the 5-minute chart — a squeeze. The next 5-10 candles should see a significant move. You prepare to trade the breakout in either direction.
Heikin Ashi
A modified candlestick chart type that averages price data to filter out noise and show trend direction more clearly. Heikin Ashi candles have smoother sequences: consecutive green candles with no lower wicks = strong uptrend. Consecutive red candles with no upper wicks = strong downtrend. Small bodies with long wicks on both sides = trend weakening or reversal. Heikin Ashi is not an indicator you add to a chart — it replaces the standard candlestick chart type (learn the Heikin Ashi strategy →).
Example: You switch your 5-minute chart to Heikin Ashi. You see 8 consecutive green candles with no lower wicks — a strong uptrend. You enter CALL trades until the Heikin Ashi candles start showing small bodies or lower wicks, signaling the trend is weakening.
Next Steps
Now that you understand technical indicators, here’s what to learn next:
What Is RSI? → — Master the most popular indicator for binary options.
What Is MACD? → — Learn MACD line crossovers and histogram signals.
MA Crossover Strategy → — A beginner-friendly trend-following strategy.
Trading involves substantial risk of losing your capital. This glossary is for educational purposes only. Past performance does not guarantee future results. Always do your own research before trading.
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