CluenexWhat is a candlestick pattern?
A candlestick pattern is a shape made by one to three candles that traders read as a sign of who is winning: buyers or sellers. A single candle records the open, high, low and close for one period, such as a day. The thick part is the body (open to close) and the thin lines are wicks (also called shadows), which mark the highest and lowest prices.
A green (or white) candle closed above its open. A red (or black) candle closed below it. Japanese rice traders developed this style of charting, and Steve Nison brought it to Western readers in his 1991 book Japanese Candlestick Charting Techniques.
The patterns below describe what happened. They do not promise what happens next.
Are candlestick patterns reliable?
Not on their own. Academic studies have found mixed results: some find small effects in certain markets and periods, others find no profit after trading costs. A pattern also has no fixed win rate, because the result depends on the stock, the time frame, how the pattern is defined and what you measure afterward.
When a guide quotes a precise win rate such as 70%, ask for the test: which stocks, which years, how the pattern was defined, and whether costs were included. Without those, the number is marketing.
The honest way to use patterns is as a description of price behavior at a place on the chart, combined with other evidence.
What are the main single-candle patterns?
Three single-candle shapes show up most often. Each is about the relationship between body and wicks.
| Pattern | Shape | What it suggests |
|---|---|---|
| Hammer | Small body near the top, lower wick at least about twice the body, after a decline | Sellers pushed price down but buyers pushed it back up |
| Shooting star | Small body near the bottom, long upper wick, after a rise | Buyers pushed price up but sellers pushed it back down |
| Doji | Open and close almost equal, wicks on one or both sides | Indecision: neither side won the period |
An inverted hammer looks like a shooting star but appears after a decline, where it hints that buyers are testing higher prices. A spinning top is a small body with wicks on both sides, a milder sign of indecision than a doji.
The two-times-the-body wick rule is a common convention, not a law. Different books use slightly different cutoffs.
What are the main two-candle patterns?
Two-candle patterns compare one candle to the one before it.
- Bullish engulfing: a red candle followed by a green candle whose body fully covers the red body. It suggests buyers took over after a decline.
- Bearish engulfing: a green candle followed by a red candle whose body fully covers the green body, after a rise.
- Bullish harami: a large red candle followed by a small candle whose body sits inside the red body. Selling is slowing. Harami is Japanese for pregnant, which is what the shape resembles.
- Bearish harami: the same idea after a rise.
- Piercing line: a red candle, then a green candle that opens lower but closes above the midpoint of the red body.
- Dark cloud cover: a green candle, then a red candle that opens higher but closes below the midpoint of the green body.
Engulfing is the most popular of these because it is easy to see. It is also the one most often overstated, so test it before trusting it.
What are the main three-candle patterns?
Three-candle patterns tell a short story across three periods.
- Morning star: a long red candle, a small-bodied candle that gaps lower, then a long green candle closing well into the first red body. It reads as selling exhaustion.
- Evening star: the mirror image at a high: long green, small candle gapping higher, long red candle closing well into the first body.
- Three white soldiers: three green candles in a row, each closing near its high and higher than the last. It suggests steady buying.
- Three black crows: three red candles in a row, each closing near its low and lower than the last.
Gaps are less common in stocks that trade nearly around the clock through extended-hours sessions, and on many charts the open of one candle is close to the prior close. That makes strict gap rules like the star patterns rarer than books suggest.
How do you check a pattern in context?
A useful pattern check asks four questions before the shape even matters:
- What was the trend? A hammer needs a decline before it. A shooting star needs a rise.
- Where is it? Near an earlier low or high (support or resistance, price areas where the stock has turned before) means more than the middle of a range.
- How much volume? Higher than normal volume suggests more traders took part. Low volume suggests the move may not hold.
- What happened next? Many traders wait for the following candle to confirm the idea instead of acting on the pattern candle itself.
Here is a worked example of why confirmation matters. Say a stock falls from $50 to $44 and prints a hammer closing at $44.50, with a low of $43. If the next candle closes at $44.00, the hammer failed to attract follow-through. If it closes at $46, the idea has some support. Neither outcome was knowable from the hammer alone.
Patterns can be paired with indicators. See RSI explained, volume analysis and support and resistance for the checks above.
Where do candlestick patterns fail?
Patterns fail often, and in predictable ways.
- Subjectivity: two traders can disagree on whether a candle is a hammer or a doji. Fuzzy definitions make results easy to cherry-pick.
- Hindsight: every chart shows patterns that worked, because the failures are forgotten. Scanning a finished chart for them proves nothing.
- Trading costs and slippage: a small average edge can disappear after commissions, spreads and late fills.
- Trend and news dominate: an earnings report or a market-wide selloff overrides any candle shape.
- Noise on short time frames: one-minute and five-minute candles carry much more random movement than daily or weekly ones.
- Crowding: a widely known setup may already be priced in by the time it forms.
A doji, for example, only says that period ended with open and close close together. It does not say which way price will go.
How does Cluenex treat chart patterns?
Cluenex charts include common technical indicators and harmonic pattern zones, and Cluenex treats chart patterns as context, not as buy or sell signals, because its own tests found no reliable directional edge in them. Stock verdicts there come from fair value and business quality, and you can read the approach in the method guide.
What this means for you
If you have a regular job and a brokerage account, candlesticks are best used as a way to read a chart, not to time trades.
- Learn to recognize the shapes so chart commentary makes sense.
- Before acting on any pattern, check the trend, the price level, the volume and the news.
- Ask where a claimed win rate comes from. If there is no test, ignore the number.
- Decide what you are buying and why first. Business quality and price matter more than a one-day candle. Guides like how to read an earnings report and position sizing cover the parts that usually matter more.
- If you do trade patterns, keep each position small enough that being wrong costs little, and track your results over many trades.