What are candlestick patterns and how do traders use them?
Candlestick patterns are formations visible on a price chart where one or more candles (each representing a time period's open, high, low, and close) form a recognizable shape associated with a potential shift in buyer/seller dynamics. They originated in 18th-century Japanese rice markets and were popularized in Western technical analysis by Steve Nison.
Reading a candlestick
Each candle shows four data points: open, close (determining the body), and high and low (the 'wicks' or 'shadows'). A bullish candle (close > open) is often shown in green; bearish (close < open) in red. The body's size and the wick's length both carry information about the session's price action.
Doji — indecision
A doji has an open and close at nearly the same price (a very small body), with wicks above and below. It signals indecision — neither buyers nor sellers won the session. In a trend, a doji can signal the trend is losing momentum. A long-legged doji (large wicks both directions) signals extreme indecision.
Engulfing candles
A bullish engulfing pattern is a two-candle pattern: a small bearish candle followed by a large bullish candle whose body completely 'engulfs' the prior candle's body. This suggests buyers stepped in strongly after a period of selling. Bearish engulfing is the inverse. Both are more significant at support/resistance levels and on above-average volume.
Hammer and Shooting Star
A hammer has a small body near the top of the candle's range, with a long lower wick — the price fell sharply during the session but recovered, suggesting buyers defended lower prices. A shooting star has a small body near the bottom, with a long upper wick — the price rose sharply but reversed, suggesting sellers emerged at higher prices.
How Vantra scans for patterns
Vantra's pattern scanner detects engulfing candles, doji, hammers, shooting stars, and trend signals from the most recent sessions of a ticker's daily OHLCV history. Each detected pattern is ranked by a confidence score based on the body-to-wick ratio and session context (volume, trend direction, proximity to support/resistance).
See candlestick patterns on any ticker
Vantra computes this and 11 other indicators live from real OHLCV data — plus the Historical Pattern Engine to show what happened under similar conditions before.
Start for free — no card required →Frequently asked questions
Are candlestick patterns reliable?
Candlestick patterns perform better as context signals than standalone entry triggers. A bullish engulfing at a key support level on above-average volume is considered far more meaningful than the same pattern in the middle of a range on thin volume. Most practitioners combine candlestick patterns with trend context and other indicators rather than trading them in isolation.
Do candlestick patterns work on all timeframes?
They're commonly used on daily and weekly charts; daily is the most widely cited. Some traders apply them to intraday charts (15-minute, hourly), where they can generate more frequent but less reliable signals. Vantra's scanner operates on the daily timeframe, which is the focus of most academic research on candlestick reliability.