Reading Stock Charts

Module 4 of 8 8 concepts + interactive chart ~25 min read
QQQ (Nasdaq 100 ETF) Simulated Daily Chart Hover over candles to see OHLC data

Candlestick Basics

Each "candle" on a chart represents one time period (1 day, 1 week, etc.) and shows four prices:

Bullish (Up Day) High Close (top) Open (bottom) Low Body Wick Wick Bearish (Down Day) Open (top) Close (bottom) Green = price went UP | Red = price went DOWN

Reading a Candle

  • Open: The price when the market opened
  • Close: The price when the market closed
  • High: The highest price reached during the day
  • Low: The lowest price reached during the day
Think of each candle as a mini story of one trading day. The body tells you "who won" (buyers or sellers). The wicks tell you "how hard the fight was" (how far prices swung before settling).
A long green body = strong buying pressure. A long red body = strong selling pressure. Long wicks = indecision or reversal. Short body with long wicks = tug-of-war.

Common Candlestick Patterns

Certain candle shapes appear repeatedly and hint at what might happen next:

Doji Open = Close Indecision Trend may reverse Hammer Small body, long lower wick Bullish reversal Sellers tried, buyers won Bullish Engulfing Big green swallows red Strong reversal signal Buyers took over Shooting Star Small body, long upper wick Bearish reversal Buyers tried, sellers won Patterns are hints, not guarantees. Always consider the broader context. Try spotting these patterns in the interactive chart above!
No pattern works 100% of the time. These are probabilistic signals, not crystal balls. Professional traders use patterns alongside other indicators and context — never in isolation.

For long-term investors: You don't need to memorize dozens of patterns. Understanding the basic candle anatomy (KP1) is enough. The patterns above are "nice to know" — they won't change your buy-and-hold strategy.

John Murphy's Technical Analysis of the Financial Markets: The definitive reference for chart patterns. Over 500 pages — but for most investors, the first 3 chapters cover 90% of what you need.

Volume: The Crowd Behind the Move

Volume is the number of shares traded during a time period. It answers: "How many people participated in this price move?"

Strong: Price Up + High Volume Confirmed — many buyers agree Weak: Price Up + Low Volume Suspicious — few buyers, move may not last

Volume Rules of Thumb

  • Price up + high volume = healthy rally, likely to continue
  • Price up + low volume = weak rally, might reverse
  • Price down + high volume = strong selling, could continue falling
  • Price down + low volume = could be a shakeout, might bounce
Volume is like votes in an election. If a candidate wins with 90% turnout, it's a mandate. If they win with 10% turnout, it's a weak victory that might not stick.
Volume confirms conviction. A big price move on tiny volume is like applause from 3 people — not very convincing.

Moving Averages (MA)

A moving average smooths out daily noise to show the trend direction. It calculates the average closing price over the past N days.

MA20 Price Gray = daily price (noisy) | Blue = MA20 (smooth trend) When price is ABOVE the MA, the trend is generally UP

Common Moving Averages

MA Period What It Shows Used For
MA5 / MA10 Very short-term trend Day/swing traders
MA20 / MA50 Medium-term trend Identifying trend direction
MA200 Long-term trend Bull vs bear market indicator

Golden Cross & Death Cross

  • Golden Cross: Short MA (50) crosses ABOVE long MA (200) — bullish signal
  • Death Cross: Short MA (50) crosses BELOW long MA (200) — bearish signal
For long-term investors: The MA200 is the only one that really matters. If the S&P 500 is above its 200-day moving average, the long-term trend is up. That's it — you don't need to memorize every crossover pattern.

Support & Resistance

These are price levels where the stock tends to "bounce" or "stall":

Resistance (ceiling) Support (floor) Bounce Bounce Rejected Rejected
  • Support: A price floor — the stock has bounced up from this level multiple times
  • Resistance: A price ceiling — the stock has been pushed back down from this level multiple times
Support is like a trampoline: prices bounce off it. Resistance is like a glass ceiling: prices keep hitting it and falling back. When the price finally BREAKS through resistance, it often becomes the new support (the ceiling becomes the floor).
For long-term investors: Support and resistance matter more for traders. If you're buying and holding for 10 years, these short-term levels won't affect your outcome. Nice to understand, not essential to act on.

MACD (Moving Average Convergence Divergence)

MACD measures momentum — is the trend speeding up or slowing down?

0 MACD Line Signal Line Histogram

How to Read MACD

  • MACD above signal line: Momentum is bullish (upward)
  • MACD below signal line: Momentum is bearish (downward)
  • MACD crosses above signal: Bullish crossover (buy signal)
  • MACD crosses below signal: Bearish crossover (sell signal)
For long-term investors: MACD is a trading tool. If you're buying VOO and holding for 10 years, MACD signals won't improve your returns. Understand the concept, but don't trade based on it.

RSI (Relative Strength Index)

RSI measures how overbought or oversold a stock is on a scale of 0-100.

70+ 30-70 30- OVERBOUGHT — might drop soon Normal range OVERSOLD — might bounce soon Overbought here — price dropped after Oversold here — price bounced after

RSI Reading

  • Above 70: Overbought — stock might be due for a pullback
  • Below 30: Oversold — stock might be due for a bounce
  • Between 30-70: Normal — no extreme signal
RSI can stay above 70 for weeks in a strong uptrend, or below 30 for weeks in a crash. It's a hint, not a guarantee. Strong stocks can stay "overbought" much longer than you expect.
For long-term investors: Like MACD, RSI is mainly useful for traders. If you're dollar-cost averaging into index funds, RSI signals won't change your strategy. Worth understanding, not worth acting on.

How Charts Help Long-Term Investors

After learning all these indicators, here's the honest truth:

Day Trading Swing Trading Long-Term Investing RSI, MACD, patterns support/resistance MA crossovers volume, trends Just the basics: overall trend, MA200

What Long-Term Investors Actually Need from Charts

  1. Overall trend direction — Is the market generally going up over years? (Answer: historically, yes)
  2. MA200 as a health check — If the S&P 500 is above its 200-day MA, the long-term trend is intact
  3. Context during crashes — Charts showing historical recoveries help you stay calm

What Long-Term Investors DON'T Need

  • Daily candlestick analysis
  • RSI/MACD trading signals
  • Support/resistance day trading
  • Chart pattern prediction
Understanding charts makes you a more informed investor. But for a long-term buy-and-hold strategy, the best chart is the one you check once a quarter — not the one you obsess over daily.
John Murphy's Technical Analysis of the Financial Markets: Even Murphy himself acknowledges that technical analysis is most useful for timing decisions, not for evaluating the fundamental worth of investments.

Module 4 Quiz

Answer all correctly to complete this module.

Q1. A green candlestick means:

The stock went up compared to yesterday
The closing price was higher than the opening price that day
More buyers than sellers
The stock hit a new high

Q2. A Hammer candlestick pattern suggests:

Continued downtrend
Possible bullish reversal — sellers tried but buyers won
The market is closed
High volume

Q3. High volume during a price rise means:

The rise is confirmed by strong participation
The rise is weak
The stock is overpriced
A crash is coming

Q4. The 200-day moving average is used to assess:

Daily trading signals
The long-term trend direction
Dividend payments
Company earnings

Q5. Support level is best described as:

A price ceiling the stock can't break above
A price floor where the stock tends to bounce up
The average price over 50 days
The highest price ever reached

Q6. RSI above 70 suggests the stock is:

Cheap and undervalued
Overbought — might be due for a pullback
About to pay a dividend
Going bankrupt

Q7. For a long-term buy-and-hold investor, the most useful chart tool is:

Daily RSI signals
MACD crossovers
Overall trend direction and MA200
Candlestick patterns
0/7
Get all 7 correct to complete this module