Doji, Hammer, Engulfing: What One Candle Can and Cannot Tell You

A candle is four numbers

Every candlestick summarises one period with four prices: open, high, low, close. The body shows where it opened and closed; the wicks show how far it travelled in between. A green (or white) body means the close was above the open; red (or black) means the close was below.

That is all a candle is. Patterns are just human names for common shapes — the meaning comes from where they appear.

Three shapes worth knowing

Doji

Open and close are almost equal, so the body is tiny with wicks on either side. A doji says: neither side won this period. On its own it means indecision. After a long, fast move it can mean the move is tiring. In the middle of a sideways range it means nothing at all.

Hammer

A small body near the top with a long lower wick — typically two or more times the body. Price was pushed down hard and then bought back up before the close. The story: sellers tried, buyers answered. A hammer at a marked support zone is a textbook thing to study; a hammer in the middle of nowhere is just a candle.

Engulfing

A body that completely covers the previous candle's body. A bullish engulfing candle opens below the previous close and closes above the previous open. It is one of the clearer “change of control” shapes because it shows a full reversal within a single period.

Context is the whole game

Ask three questions before giving any candle meaning:

1. Where is it? At a level, at a trend extreme, or in the noise?
2. What came before it? A hammer after ten red candles carries different weight than after two.
3. What confirmed it? Did the next candle follow through, or did it immediately reverse?

Common beginner mistakes

• Memorising thirty pattern names and recognising none in real time.
• Trading the pattern on a 1-minute chart while ignoring the daily trend.
• Treating a pattern as a promise rather than a probability.

Practice

Scroll back on any Nifty daily chart. Find ten hammers. Write down where each one appeared and what happened in the next three candles. You will learn quickly that the location decided the outcome far more than the shape.

This lesson teaches reading, not trading. Nothing here is a recommendation.