A year ago, the S&P 500 hit a market top before a nasty slide, but technician says this time is different

Todd Gordon, TradingAnalysis.com, on key levels to watch in the S&P 500. With CNBC's Melissa Lee and the Fast Money traders, Pete Najarian, Tim Seymour, Karen Finerman and Guy Adami.
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Tue, Dec 3 20196:12 PM EST