Many investors were raging bulls at the beginning of 2018, as equity prices vaulted higher. But that optimism faded dramatically as the news flow turned less favorable. Thus far in 2018, what is clear is certain assumptions and patterns that governed markets in recent years have shifted. Equity volatility, which was remarkably low in 2017, has returned, perhaps due to greater uncertainty about inflation, the economy and geopolitics. Rising interest rates mean the yield on 1-Year Treasuries (2.4 percent) is higher than the dividend yield on the S&P 500 Index (1.8 percent) for the first time in years, creating some competition for the stock market (different asset classes react differently to significant changes in interest rates).