Charts and analysis
Technical Indicators: What They Measure and What They Miss
Every popular indicator is arithmetic performed on price. Understanding the calculation is what tells you when the output is meaningful and when it is noise.
A technical indicator is a calculation performed on price, plotted so you can read a condition at a glance. That is the entire category. Understanding the calculation is what tells you when the output means something and when it does not.
The two families
- Trend indicators: moving averages, MACD, ADX. They smooth price to show direction. They work in trends and whipsaw badly in ranges.
- Oscillators: RSI, stochastics, CCI. They measure the speed or extremity of recent moves on a bounded scale. They work in ranges and give false signals throughout strong trends.
Each family fails in exactly the conditions the other suits. This is why stacking indicators rarely helps: in a trend your oscillator is wrong, in a range your trend indicator is wrong, and combining them mostly produces contradiction rather than clarity.
What indicators are good for
- Consistency. A defined rule applied identically every time removes discretion, which is worth more than most traders credit.
- Summarising. A 200-day moving average answers "is this above or below its long-term average" faster than reading the chart.
- Sizing. ATR converts volatility into a stop distance, and a stop distance into a position size. This is the highest-value use, and it involves no signal at all.
What they are not good for is prediction. Nothing derived from past prices predicts future ones.
How these guides are structured
Each guide covers the calculation, what the indicator measures, how it is commonly misread, and where it fits in a process that starts with price structure rather than with indicators.
Read them after support and resistance. An indicator reading at a level that matters is context; the same reading in open space is arithmetic.
RSI Indicator: How It Works and How It Is Misread
The most widely used and most widely misunderstood oscillator. What the number measures, and why shorting every reading above 70 loses money.
Read the guide →- intermediate
MACD Indicator: Crossovers, Histogram and Divergence
Two moving averages, their difference, and a signal line. Straightforward arithmetic, widely misused, mostly by traders acting on every crossover.
- beginner
Moving Averages: SMA vs EMA and How to Use Them
The simplest indicator there is, and the most useful, provided you treat it as a trend filter rather than a signal generator.
Indicators FAQs
What are technical indicators?
Technical indicators are calculations performed on price, and sometimes volume, plotted alongside a chart to summarise a condition quickly. A moving average smooths price, RSI measures the speed of recent moves, MACD compares two moving averages. All of them are arithmetic on data already visible on the chart.
Which indicator is the most accurate?
None, in the sense the question implies. Because indicators are computed from price, they cannot contain information price does not already hold, and every one of them lags by construction. They are useful for summarising conditions and enforcing consistency, not for prediction.
How many indicators should I use?
Two at most, and zero is workable. Several momentum indicators will agree with each other almost always, because they are calculated from the same prices. That agreement feels like confirmation but is the same information counted twice.
Do indicators work on all timeframes?
The calculations work identically on any timeframe, but signal quality rises with the timeframe. An RSI reading on a daily chart summarises weeks of genuine participation. The same reading on a 1-minute chart summarises noise and will generate dozens of signals a day, almost all worthless.
Which indicator should a beginner learn first?
ATR, and not as a signal. Average True Range measures how far a stock typically moves, which lets you set stop distances that adapt to volatility instead of using an arbitrary percentage. That makes position sizing consistent across instruments, which matters far more than any entry signal.