Market bears resurface, S&P 500 reverses from major resistance By: MarketWatch April 21, 2020 at 12:40 PM EDT Technically speaking, the major U.S. benchmarks are back on the defensive, pressured amid plunging crude-oil prices, writes Michael Ashbaugh. Read More >> Related Stocks: INDUSTRIAL SEL MATERIALS Nasdaq Biotechnology Ishares ETF Nasdaq Composite S&P Retail SPDR UTILITIES SEL