Alarm bells for both Bulls and Bears Signal Choppy year-end US.

Photographer: Ralph Orlowski / Bloomberg

The way is set for a volatile year-end in the US stock market as bullish and bearish signals both hit extreme levels in recent days.

Bulls are encouraged by the increasing breadth of the current rally. A gauge of momentum – the five-day moving average of new 52-week highs on the New York Stock Exchange versus lows – is just past its highest in 10 years. Bears point to measures of extremely positive sentiment – such as record call options volumes – to bolster their case for a pullback.

Gauge of momentum, sentiment for US stocks trading at extreme levels

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