What is Technical Analysis?
Technical analysis is a trading discipline that evaluates securities by analyzing price charts, trading volume, and historical patterns to identify trends and predict future price movements.
Technical analysis is a method of evaluating and forecasting the price movements of securities — stocks, ETFs, forex, commodities, or cryptocurrencies — based on historical price data, trading volume, and chart patterns. Unlike fundamental analysis, which examines a company's financial health and intrinsic value, technical analysis focuses entirely on what the price has done and what that might suggest about where it's going next.
The core premise of technical analysis is that all known information is already reflected in a security's price, and that price movements tend to follow identifiable patterns driven by human psychology and market behavior.
Core Concepts
Trend — The direction a price is moving: uptrend (higher highs and higher lows), downtrend (lower highs and lower lows), or sideways (range-bound). "The trend is your friend" is one of technical analysis's most cited principles.
Support and Resistance
- Support — A price level where buying interest has historically emerged, preventing further declines
- Resistance — A price level where selling pressure has historically halted advances
When a support level breaks, it often becomes a new resistance level — and vice versa.
Volume — Rising price with rising volume suggests strong conviction behind the move. Rising price with falling volume may indicate a weak or unsustainable trend.
Common Technical Indicators
| Indicator | What It Measures |
|---|---|
| Moving averages (MA) | Smooth price data to identify trend direction |
| Relative Strength Index (RSI) | Measures whether a stock is overbought or oversold |
| MACD | Shows momentum and potential trend changes |
| Bollinger Bands | Volatility-based bands around a moving average |
| Volume | Confirms or questions the strength of price moves |
Common Chart Patterns
Technical analysts study recurring price patterns that historically have preceded predictable moves:
- Head and shoulders — A reversal pattern suggesting a trend change from bullish to bearish
- Double top / double bottom — Two peaks or troughs at similar prices, signaling potential reversal
- Cup and handle — A bullish continuation pattern popularized by William O'Neil
- Flags and pennants — Short consolidation patterns within a larger trend, often followed by a continuation of the prior move
- Breakout — When price moves above resistance or below support, often on high volume, signaling a new trend
Technical Analysis vs. Fundamental Analysis
| Technical Analysis | Fundamental Analysis | |
|---|---|---|
| Data used | Price, volume, chart patterns | Earnings, balance sheet, competitive position |
| Time horizon | Short to medium term | Long term |
| Primary users | Traders, day traders | Long-term investors |
| Core belief | Price action reflects all information | True value eventually recognized |
Many investors use both: fundamentals to decide what to buy, and technical analysis to help decide when to buy or sell.
Limitations
Technical analysis is controversial. Critics point out that many patterns can be identified only in hindsight, that financial markets are at least partially efficient (making past patterns unreliable guides to future prices), and that the large number of indicators allows traders to find patterns that may be coincidental. Despite this, technical analysis remains widely used by traders seeking short-term edges.