The Bank Nifty gapped down but the gap was filled soon enough.Trade for the entire day was below yesterday's low of 5169 and closed below it too.Having found support at the lows and closing in the green the break down from the descending triangle is not convincing enough to turn into a bear.The support from the falling channel from November 2010 is at 9686 and from the flag is at 9716.Chances of the uptrend resuming is high if these supports hold.
Half Hourly Chart
Fibonacci supports and resitances marked in the chart above.
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