SM is right on this one. Just a green candle piercing the upper BB does not give any signal. The colour of the next candle is what is important.
However, having said that there are always exceptions to the rule and other ways to play the same thing which is what Savant was mentioning to Izzner.
1. If a stock pierces the upper BB, there is usually a bit of down reaction the next day. So, if the price on Monday again comes above Friday's high, there is good risk/reward for going short intraday from the highest possible level.
2. Since we are looking at EOD charts, we will have to wait for Monday's closing to see what the colour of the bar would be. But do we have it? Depending upon the opening price, by the afternon we can "predict" to some extent whether Monday's candle would be green or red. So depending upon that, the short position can be carried forward.
3. Normally, the piercing of the upper BB might be coupled with breakout from previous congestion zone or breakout from previous highs, and hence that stock should be monitored for a long positional trade. Even in these scenarios, there will be a bit of retrenchment. Piercing of the upper BB is not a buy signal by itself for positional long trades. Longs should already have been initiated when a 5/6 crossover, price coming over 20 EMA or pricing moving over last pivot high etc happened.
Ofcourse, all this has to be seen with the overall market sentiment in view. When a general market weakness happens intraday, a stock that has pierced upper BB the previous day and is already up might fall more than others.
Hope this clarifies the confusion.
Regards,
Enygma.
Green candle piercing the upper BB does not give a short signal, rather it should be a B.Hold (not fresh buy too). If the next candle is green then a buy is trigerred, if it is red and comes back into the BB then it is a short.
Teacher ji, hope sahi jawaab diya hai (means I HAVE learnt something
)