A hammer is a candle with a small body near the top of its range, little or no upper wick, and a lower wick at least twice the body's length, appearing after a downtrend. Sellers drove price down and buyers pushed it back before the close. Treat it as a possible bullish reversal, wait for the next candle to confirm, and put your stop just below the wick's low.
- Signal
- Bullish reversal
- Candles
- 1
- Look for it
- After a downtrend
- In Alphacent
- Free library
Three measurements that make a candle a hammer
Check the proportions before you call anything a hammer. Eyeballing is how people end up labeling every candle with a tail.
- The lower wick is at least twice as long as the real body. Three or four times is better.
- The body is small and sits in the upper part of the candle's range, roughly the top third.
- The upper wick is missing or a small stub, tiny next to the lower wick.
In the diagram, price opens at 68, falls all the way to 14, and closes at 72, just under the high of 76. That is a 54-unit lower wick on a 4-unit body, a ratio of 13.5 to 1. Real charts are rarely this tidy, so treat two times as the minimum, not the target.
What the long wick says about buyers and sellers
Think of the hammer as a record of a sell-off that did not stick. Sellers pushed price well below the open during the session. Near the low, buyers stepped in, and by the close price was back up near the top of the range.
That gives you two facts. Sellers were still strong enough to force a deep drop, so the downtrend was alive that session. And they could not hold those lower prices, which is the first sign of demand at that level.
What it does not give you is a turned trend. One good session for buyers shifts the odds a little. It does not hand them the chart, which is why the next candle matters so much.
Hammer or hanging man? Look left of the candle
The hanging man is the same candle, down to the proportions. Looking at one candle on its own, you cannot tell them apart.
The only difference is what came before it:
- After a decline, it is a hammer, a possible bullish reversal.
- After a rise, it is a hanging man, a warning that sellers managed a deep drop inside an uptrend, even though buyers recovered it by the close.
So before you judge the shape, scroll left and check what price did over the previous 10 to 20 candles. If you cannot say clearly that the market was falling, you have neither pattern. You have a candle with a long wick in a range.
Two more lookalikes trip people up. The inverted hammer flips the shape: long upper wick, small body at the bottom, also after a downtrend. Its twin at the top of a rally is the shooting star. If the wick points up, you are looking at one of those.
Conditions that make a hammer worth trading
Location does most of the work. A hammer earns your attention when it follows a clear, sustained downtrend (not two red candles), when its low probes a level that has held before, such as a prior swing low or a support zone, and when the next candle closes above the hammer's close, ideally on higher volume than the recent candles. Stricter traders want that close above the hammer's high.
It tends to fail in quieter or messier conditions:
- Thin, low-volume sessions, where the long wick can be one burst of selling that means very little.
- Sideways ranges, where a "support" level that has already been broken twice gives the hammer nothing to stand on.
- A next candle that closes below the hammer's low. The buyers who defended it have been overrun, and the pattern is void.
Where the stop goes, with a worked example
The usual stop sits just below the hammer's low. The whole pattern claims buyers defended that price. If the market trades back through it, the claim was wrong and there is no reason to stay in.
Leave a small buffer under the exact low, since markets often come back to tag the same price. Some traders put the stop halfway up the lower wick to keep it tight, but that stop sits inside the zone the hammer just proved was volatile, so it gets hit more often.
The trade-off: a long wick means a wide stop, and a wide stop means a smaller position.
A hypothetical trade on a $2,000 paper account
Say you watch a hypothetical ETF on the daily chart after a two-week decline. A hammer forms: open $48.60, low $46.80, close $49.00, high $49.10. The lower wick is $1.80 against a $0.40 body, so it clears the two-times test easily.
You wait a day. The next candle closes at $49.80, above the hammer's high, and you enter there.
- Stop: $46.60, twenty cents below the wick low.
- Risk per share: $49.80 minus $46.60 is $3.20.
- Risk budget at 1% of the account: $2,000 x 1% = $20.
- Size: $20 / $3.20 = 6.25, rounded down to 6 shares.
- Actual risk: 6 x $3.20 = $19.20. Position value: 6 x $49.80 = $298.80.
Only about 15% of the account goes in, because the stop is far away. That is the point of sizing from the stop. The position sizing guide shows how the same math changes with tighter or wider stops.
Confirmation had a price too: you paid $49.80 instead of $49.00, 80 cents worse, in exchange for evidence that buyers followed through.
Mistakes that turn a decent hammer into a bad trade
- Buying while the candle is still forming. Until it closes, that long wick can turn into a long red body. Wait for the close, then wait for the next candle.
- Skipping confirmation because the shape looks perfect. A beautiful hammer followed by a lower close is still a failed hammer.
- Chasing late with no defined risk. If the next candle rips far above the hammer, the distance to a sensible stop balloons and the position has to shrink toward nothing. Buying anyway without a stop turns a planned trade into hope. Sometimes the right call is to let it go.
- Ignoring the larger trend. A hammer on the 1H chart inside a steep daily decline is swimming against a stronger current.
Proportions get easier to judge once you have built a few candles. Alphacent's free Build a Candle tool lets you drag the open, high, low and close and names the shape as it changes. Build a typical hammer there and the label reads "Hammer / Hanging Man", because only the trend before it can settle which one it is. The pattern quiz then tests how quickly you recognize shapes on sight.
Worked examples on this page use a hypothetical paper account and are for learning only, not advice. In Alphacent, free trades use a fixed $1,000 size; choosing your size, stop-loss and take-profit orders, and leverage are Pro features.
Questions people ask
Is a red hammer still a bullish signal?
Yes. Shape and location define a hammer, not color. A red hammer closed slightly below its open, so buyers recovered most of the drop but not all of it. Many traders rate a green hammer a little higher because buyers pushed price above the open by the close. Either way, the next candle still has to confirm it.
Which timeframe gives the most reliable hammer candles?
Higher timeframes carry more weight because each candle holds more trading. A daily or weekly hammer reflects a full day or week of buyers rejecting lower prices. On a 1-minute chart the same shape can come from a single large order. Beginners usually get cleaner reads on the 1H chart and above.
Is a dragonfly doji the same as a hammer?
Close, but not identical. A dragonfly doji opens and closes at or very near its high, so it has almost no body. A hammer has a small but visible body. After a downtrend, traders read both as rejected lower prices, but the doji leans more toward indecision until the following candle settles it.