Technical Analysis:
How to Read Stock Charts

What Is Technical Analysis

Technical analysis is the study of price and volume data to anticipate where a stock might move next. If you're learning how to read stock charts for the first time, this is where to start. Instead of analyzing a company's earnings, revenue, or management (that's fundamental analysis), you're analyzing how the market is actually trading the stock right now.

The core idea is simple: price reflects everything. Every piece of public information, every institutional opinion, every retail trader's gut feeling. It all shows up in the chart. You don't need to know why a stock is moving to profit from how it moves.

That said, technical analysis isn't a crystal ball. It's a framework for reading the behavior of other market participants. When thousands of traders are watching the same price levels and patterns, their collective actions create self-reinforcing dynamics. Understanding these dynamics gives you an edge. Not certainty, but better odds.

Candlestick Charts: Reading Price Action

Every candlestick represents a single time period: one day, one hour, one minute, depending on your chart's timeframe. Each candle contains four data points: open (where the price started), high (the highest price reached), low (the lowest price reached), and close (where the price ended).

The thick part of the candle is the body. It shows the range between open and close. A green candle means the stock closed higher than it opened, so buyers were in control. A red candle means it closed lower. Sellers won that session.

The thin lines extending above and below the body are called wicks (or shadows). They tell you the extremes the price hit before pulling back. A long upper wick means sellers pushed the price down from its high. A long lower wick means buyers stepped in to defend against a drop.

What candle shapes tell you

• Large body, small wicks: Strong conviction. The side that won (buyers or sellers) dominated the entire session with little pushback.
• Small body, long wicks: Indecision. Both sides fought hard, but neither could hold the advantage. Often appears at turning points.
• Long lower wick, small body near the top: Buyers rejected the lower prices aggressively. This is commonly a bullish signal, especially after a decline.
• Long upper wick, small body near the bottom: Sellers rejected the higher prices. A bearish signal, especially after a rally.

Don't memorize candle pattern names. Instead, learn to read what the candle is telling you: who was in control, how much conviction they had, and where the other side stepped in.

Support and Resistance

Support and resistance are price levels where buying or selling pressure tends to concentrate. Support is a price floor, a level where enough buyers step in to prevent the stock from falling further. Resistance is a price ceiling, where enough sellers appear to stop the stock from rising.

These levels form because traders have memory. If a stock bounced off $150 three times in the past month, traders notice. The next time it approaches $150, buyers get aggressive because it "worked" before, and sellers get cautious for the same reason. The level becomes a self-fulfilling prophecy.

How to identify support and resistance

• Look for clusters of reversals. If price reversed direction at roughly the same level two or more times, that's a significant level. The more touches, the stronger the level.
• Round numbers matter. Stocks tend to stall at $100, $200, $50, etc. It's psychological. Traders set limit orders and stop losses at round numbers.
• Previous highs become resistance, previous lows become support. If a stock peaked at $180 last quarter, expect sellers there again on the next attempt.
• When support breaks, it becomes resistance (and vice versa). This "polarity flip" is one of the most reliable dynamics in technical analysis.

Trading around these levels

The simplest strategy: buy near support with a stop loss just below it, or sell near resistance with a stop just above it. Your risk is defined (the distance to your stop), and the reward is the distance to the opposing level. If the math doesn't give you at least a 2:1 reward-to-risk ratio, skip the trade.

The most powerful moves happen when a stock breaks through a resistance level. What was resistance becomes support, and the stock often accelerates upward as trapped sellers cover and new buyers pile in. Breakouts on high volume are the highest-probability version of this.

Trends: Following the Market Direction

Trends are the single most important concept in technical analysis. A stock in an uptrend makes higher highs (each peak exceeds the last) and higher lows (each pullback bottoms out above the previous one). A downtrend is the opposite: lower highs and lower lows.

The reason trends persist is simple: buying begets buying. As a stock rises, short sellers get squeezed, holders feel validated and buy more, and momentum traders jump in. This creates a feedback loop that only breaks when the narrative changes or the stock becomes overextended.

Identifying trends

The simplest method is visual: draw a line connecting the higher lows in an uptrend (or the lower highs in a downtrend). This trendline acts as dynamic support. As long as the stock respects the line, the trend is intact. Moving averages (like the 20-day or 50-day EMA shown on the chart above) serve the same purpose with less subjectivity. If price is above the moving average, the trend is up.

When trends break

An uptrend breaks when the stock makes a lower low, pulling back further than the previous pullback. This is your signal that the balance of power has shifted. A break below the trendline or a sustained move below the 50-day moving average confirms it.

The critical mistake most traders make: fighting the trend. If a stock is clearly trending up, shorting it because it "seems expensive" is a losing game. Trade with the trend until it demonstrably breaks. The old saying is right: "the trend is your friend."

Key Indicators

Indicators are mathematical calculations applied to price and volume data. They help quantify what you can often see on the chart, and they're most useful for confirming what the price action is already telling you. Here are the ones worth knowing:

Moving averages

A moving average smooths out price data over a specific number of periods. The 20-day EMA (exponential moving average) tracks the short-term trend. The 50-day EMA captures the intermediate trend. When price is above both, the trend is strong. When the short-term crosses below the long-term, momentum is shifting bearish.

Read our full moving averages guide →

RSI (Relative Strength Index)

RSI measures the speed and magnitude of recent price changes on a scale from 0 to 100. Above 70 is considered overbought, meaning the stock has gone up too fast and might pull back. Below 30 is oversold, beaten down and due for a bounce. But in strong trends, a stock can stay overbought or oversold for weeks. RSI works best in range-bound markets and as a divergence signal: when price makes a new high but RSI doesn't, momentum is fading.

Read our full RSI guide →

MACD (Moving Average Convergence Divergence)

MACD tracks the relationship between two moving averages. When the MACD line crosses above the signal line, momentum is turning bullish. When it crosses below, bearish. The histogram shows the distance between the two lines. Growing bars mean momentum is accelerating, shrinking bars mean it's fading. MACD is particularly useful for identifying the start of new trends.

Read our full MACD guide →

Other indicators worth knowing

Bollinger Bands wrap a moving average in volatility envelopes. When the bands squeeze tight, a breakout is coming. ATR (Average True Range) measures volatility directly and is essential for sizing stop losses. ADX tells you whether a stock is trending at all, which determines whether trend-following indicators will work or whipsaw you. And VWAP is the institutional benchmark for intraday trading, acting as dynamic support and resistance throughout the day.

Volume: The Confirmation Signal

Volume is the number of shares traded in a given period. It tells you how much conviction is behind a price move. A stock can move on low volume, but those moves are less trustworthy than moves backed by heavy participation.

What volume confirms

• Breakouts on high volume are real. When a stock breaks through resistance and volume surges to 2-3x its average, institutions are participating. That breakout is more likely to stick.
• Breakouts on low volume are suspect. If price pushes through a key level but volume is below average, there's not enough conviction to sustain the move. These often reverse.
• Rising price + declining volume = warning. If a stock keeps grinding higher but fewer and fewer shares are trading, the trend is running out of buyers. This divergence often precedes a reversal.
• Sell-offs on high volume clear the way for recovery. When a stock drops hard on massive volume, it means weak hands are being flushed out. Once the selling is exhausted, the stock can build a base.

What to compare volume to

Raw volume numbers are meaningless without context. Always compare today's volume to the stock's average volume over the past 20-50 days. A stock that trades 5 million shares per day seeing 15 million shares is a significant event. A stock that normally trades 500,000 shares seeing 600,000 is noise.

Putting It All Together

Individual concepts are useful, but trading decisions come from combining them. This is how a complete analysis looks in practice:

Step 1: Identify the trend

Start by zooming out. Is the stock making higher highs and higher lows? Is it above or below key moving averages? Determine whether you're looking at an uptrend, downtrend, or range. This dictates your bias. In an uptrend, you're looking for buying opportunities on pullbacks. In a downtrend, you either stay away or look for shorts.

Step 2: Find your level

Identify the nearest support and resistance levels. In an uptrend, you want to buy near support (a pullback to a previous breakout level or the trendline). The closer to support you enter, the tighter your stop loss can be, which improves your risk/reward ratio.

Step 3: Wait for confirmation

Don't buy just because the price touched support. Wait for a bullish candle at that level, like a candle with a long lower wick showing buyers defending the level, or a strong green candle closing near its high. Check that RSI isn't already overbought. Look for volume to pick up on the bounce.

Step 4: Manage the trade

Set your stop loss below the support level. If you're wrong, you lose a defined, small amount. Set your profit target at the next resistance level. As the stock moves in your favor, consider trailing your stop, moving it up below each new higher low to lock in gains while letting the trend run.

Expect losses

No setup works every time. Even the best technical analysis will produce losing trades. The edge comes from consistency: finding setups where the odds are in your favor, keeping losses small, and letting winners run. Over dozens of trades, a strategy with a 55% win rate and 2:1 reward-to-risk is highly profitable, but any individual trade can go either way.

The traders who succeed aren't the ones with the best indicator settings or the most sophisticated charts. They're the ones who developed a process, stuck to it, and had the discipline to manage risk on every single trade.

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