ForexSQ.com - The US Dollar may rise amid returning safe-haven demand as S&P 500 technical positioning warns that a double top may be emerging. S&P 500 – Prices put in a Doji candlestick below resistance at 1272.60, the December 8 swing high, hinting bullish momentum is ebbing and threatening a reversal lower ahead. Initial support lines up at 1253.80, a former resistance at a falling trend line set from the October 27 high.