Market indicators have been sending conflicting signals lately, creating uncertainty among investors. While year-to-date gains are certainly better than last year’s bear, and volatility, while a concern, has run lower than last year, plenty of risk factors still remain, both in the broader economy and in the stock market. Taking a wider view of the markets, Christian Mueller-Glissman, head of asset allocation research for Goldman Sachs, gives investors a nudge toward a more defensive posture. Ex