With just one day after the S&P 500’s bullish follow-through signal, Monday’s action could be summed up as “pretty good so far” for the new uptrend. Energy and material stocks helped the S&P 500 to a 1.8% gain. The benchmark index has now climbed for five straight sessions, marking its longest win streak of the year. The Nasdaq rallied 1.6% and has now erased nearly all losses from a six-day slide from late September.