Can The 200 Day Moving Average Halt The Downtrend? By: TalkMarkets October 13, 2014 at 08:50 AM EDT The S&P 500 plunged 61.77 points last week…a 3.1% decline. We're now 5.6% under the S&P 500's peak of 2019.26, hit four weeks ago. Read More >> Related Stocks: CBOE Volatility Index PowerShares QQQ SPDR S&P 500 ETF Trust Standard & Poors 500