Charts and analysis
Technical Indicators: What They Measure and What They Miss
Every popular indicator is arithmetic done on price. Once you understand the calculation, you can tell when the output means something and when it is just noise dressed up as a signal.
A technical indicator is a calculation performed on price, plotted so you can read a condition at a glance. That's the whole category. Once you understand the calculation, you can tell when the output means something and when it doesn't.
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. That's why stacking indicators rarely helps. In a trend your oscillator is wrong, in a range your trend indicator is wrong, and putting them together mostly produces contradiction.
What indicators are good for
- Consistency. A defined rule applied identically every time removes discretion, and that's worth more than most traders give it credit for.
- 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. That's the highest-value use of any indicator, and there's no signal involved in it at all.
What they can't do is predict. Nothing derived from past prices tells you about future ones.
How these guides are structured
Each guide covers the calculation, what the indicator measures, how it gets misread, and where it fits into a process that starts with price structure and only then reaches for an indicator.
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
A reading of how one-sided the last fourteen bars have been. That is the whole of it, and nearly every expensive mistake with it comes from expecting more.
Read the guide →- intermediate
MACD Indicator: Crossovers, Histogram and Divergence
Two exponential averages and the gap between them. The arithmetic is simple; the trouble starts when traders act on every crossover a choppy market produces.
- beginner
Moving Averages: SMA vs EMA and How to Use Them
A 200-day average settles direction in about a second, and trading only that direction throws out a pile of bad trades. As an entry trigger it is much weaker.
- intermediate
VWAP vs Moving Average: Which One to Trade
VWAP and a moving average draw similar looking lines for completely different reasons. One is an intraday reference price, the other a trend filter, and swapping them quietly breaks both.
- intermediate
Bollinger Band Squeeze: Trading the Volatility Breakout
Narrow bands mean a quiet market, and quiet markets do not stay quiet. That is the whole signal, and it contains no direction at all.
- intermediate
Stochastic Oscillator vs RSI: Which to Use
RSI measures the balance of gains against losses. The stochastic measures where price closed inside its recent range. Those answers diverge exactly when it matters.
Indicators FAQs
What are technical indicators?
Technical indicators are calculations run on price, and sometimes volume, plotted beside a chart so you can read a condition at a glance. A moving average smooths price, RSI measures the speed of recent moves, MACD compares two moving averages. All of them are arithmetic on data that's already on the chart.
Which indicator is the most accurate?
None of them, in the sense the question implies. They're computed from price, so everything they know is already on the chart, and they all lag by construction. Where they earn their place is summarising conditions quickly and keeping your decisions consistent.
How many indicators should I use?
Two at most, and zero works fine. Several momentum indicators will agree with each other almost every time, because they're calculated from the same prices. That agreement feels like confirmation when it's really the same information counted twice.
Do indicators work on all timeframes?
The calculations run identically on any timeframe, though signal quality climbs with it. An RSI reading on a daily chart summarises weeks of real participation. The same reading on a 1-minute chart summarises noise and will fire dozens of times a day, almost all of it worthless.
Which indicator should a beginner learn first?
ATR, used for sizing. Average True Range measures how far a stock typically moves, so you can set stop distances that adapt to its volatility. That keeps your position sizing consistent across instruments, which matters far more than any entry signal.