Next Monday, the first trading day of May, has a bullish history over the past 23-years. DJIA, S&P 500 and NASDAQ have all averaged around 0.4% on the day. S&P 500 and NASDAQ have the best record, up 16 times or 69.6% of the time since 1998. With an average gain of 0.18%, Russell 2000 is slightly weaker. All four indexes have been down the last two years (DJIA four in a row).