At the beginning of 2017, a common view among money managers and analysts was that the financial markets would not repeat their strong returns from 2016. Many cited the uncertain global economy, political turmoil in the US, implementation of Brexit, conflicts in the Middle East, North Korea's weapons buildup, and other factors. The global equity markets defied their predictions, with major equity indices in the US, developed ex-US, and emerging markets posting strong returns for the year.
The broad global advance underscores the importance of following an investment approach based on diversification and discipline rather than prediction and timing. Attempting to predict markets requires investors to not only accurately forecast future events, but also predict how markets will react to those events. The 2017 markets were a good reminder that there is little evidence suggesting either of these objectives can be accomplished on a consistent basis.
Instead of attempting to make predictions about future events, investors should appreciate that today's price reflects the expectations of market participants and information about future expected returns. The following quote by the late Merton Miller, Nobel Laureate, describes this view:
"Everybody has some information. The function of the markets is to aggregate that information, evaluate it, and get it incorporated into prices." - Merton Miller
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