‘Too many charged-up bulls’: These 4 indicators could signal a stock-market pullback early next year

• Market optimism on both Wall Street and Main Street are nearing all-time highs right now.
• Contrarian investor Edward Yardeni, however, is predicting a stock-market pullback.
• Yardeni shares 4 seemingly bullish indicators that are actually sending a bearish message.

Sometimes, good news is bad news in the stock market — especially when it comes to indicators like investor sentiment.