S&P 500 Advance - Decline line ends the 2017 year by declining slightly after posting its new record high in late December by first touching the region of the daily 50,2 Upper BB -
A-D line chart #2 -
* the bears have an opportunity now to push these various chart elements lower in January, and if no downside follow through takes place in January to February 2018 it will represent a bullish testimony reflected in this chart very clearly
( my chart interpretation as of Monday January 1, 2018 )
* notice the 15,3 Bollinger Band history for SPY price action shows the lower BB is touched at the times before the upside reversals while the Upper BB is touched or actually broken Above when the price action has a strong upward thrust
* the S&P 500 McClellan Oscillator weakened during 2nd half of December
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