Intraday Pattern Scanner: Check a Candle Pair

Why the Example Matches Two Rules

The prior example candle opens at 52, reaches 54 and 48, and closes at 50. The current candle opens at 49.50, reaches 53 and 49, and closes at 52.50. Its bullish body is 3 wide and contains the prior bearish body of 2. Its high-low range nevertheless sits strictly inside the previous range. Body engulfment and an inside bar can coexist because they measure different endpoints.

Change the current open to 50 and close to 52: body size is now equal to the prior size, so engulfment fails. Change the current high to 54: the strict inside-bar rule fails at equality. A wick covering the previous high does not repair a failed body-size test.

What Two Candles Cannot Establish

This tool does not detect flags, pennants, triangles, double tops or head and shoulders. Those require more history and an explicit definition of pivots, tolerances, duration and breakout confirmation. It also cannot determine whether the entered bars have closed or whether they belong to the same market.

An engulfing shape after a decline has a different context from the same shape after an advance. TradingView's engulfing documentation separates body geometry from configurable trend detection. Its outside-bar documentation compares highs and lows. The checker above publishes its own strict equality rules and does not claim to reproduce every chart indicator.

Review spread, liquidity, session and any later confirmation separately. A completed formation can fail, and a stop order does not establish a guaranteed fill price. No accuracy percentage, trading performance or preferred intraday interval has been measured for this checker.

Frequently Asked Questions