January breakout accelerates, S&P 500 clears 20-day volatility bands By: MarketWatch January 16, 2018 at 12:40 PM EST Each big three U.S. benchmark has staged a massive breakout to start 2018, confirming its primary uptrend, writes Michael Ashbaugh. Read More >> Related Stocks: Amazon.com Blackberry Ltd Macy's Maxim Integrated