Hammer Candlestick Pattern: How to Identify It (Plus Inverted Hammer and Hanging Man)

The hammer is one of the most widely recognized single-candle patterns. It's a candle with a small body at the top of its range and a long lower wick, and it appears after a decline. The shape looks like a hammer: a short head with a long handle pointing down.

What a Hammer Looks Like

The standard definition has these features:

• A small real body near the top of the day's range.
• A long lower wick, commonly defined as at least twice the length of the body.
• Little or no upper wick.
• It appears after a decline (a downtrend or a pullback).

The body color (green or red) is less important than the shape, though a green body (close above open) is generally described as slightly stronger.

The Story Behind the Shape

During the period, sellers pushed price sharply lower — the long lower wick shows how far it dropped. But buyers then stepped in and drove price back up toward the open, so it closed near the top of the range. In words, the market tested lower prices and rejected them.

That's why a hammer after a decline is traditionally read as a possible sign that selling pressure is weakening. It describes what happened in one period. It doesn't say the decline is over.

Look-Alikes: Same Shapes, Different Context

The same two basic shapes make up four patterns, distinguished by where they show up:

So a hammer and a hanging man are the same candle, with opposite traditional meanings depending on the trend before them. The same is true of the inverted hammer and the shooting star.

Inverted hammer: small body near the bottom of the range with a long upper wick, appearing after a decline. Buyers pushed price up during the period but couldn't hold it, so it's more tentative than a hammer. It generally needs stronger confirmation.

Confirmation

The standard advice is not to act on the candle by itself. A hammer is usually considered more meaningful if:

1. The next candle closes higher, ideally above the hammer's body or high. This is the most common confirmation rule.
2. Volume is elevated on the hammer day, suggesting active buying at the lows.
3. It forms at a recognizable support level rather than in the middle of nowhere.
4. The prior decline was meaningful. A hammer after a two-day dip is less notable than one after weeks of selling.

A Worked Example

A stock has fallen for several weeks. On one day, it opens at $40.00, falls to $37.50, and rallies to close at $39.80. The body is $0.20 (open $40.00 to close $39.80), the lower wick is $2.30, and the upper wick is essentially zero. The lower wick is more than ten times the body.

That's a hammer. A trader following the standard approach would wait to see whether the next day closes above $40.00 before treating it as meaningful.

What the Evidence Says

Candlestick reversal patterns are popular, but research support is weak. A 2006 study of Dow Jones stocks by Marshall, Young, and Rose found little evidence that candlestick patterns generated a reliable profit, and other studies report mixed results depending on the market and time frame. For the broader picture see do chart patterns actually work.

Limits

• Hammers are common, and many are followed by further declines.
• The definition is fuzzy. "At least twice the body" is a convention; different sources vary.
• A single candle carries little information compared with a developed pattern or trend.
• Context matters. Time frame, prior trend, and nearby levels change the reading. See timeframes.

For related candles, see the doji and the broader candlestick glossary.

This article is for educational purposes only and is not investment advice.