The calm on Wall Street has finally been punctured by a rare bout of selling. One major concern for Wall Street: The bond market has been selling off lately. That's raising fears that the era of extremely low bond rates -- which has been very good to the stock market -- could soon be over. Related: This is the calmest stock market rally in historyThere are still signs that the market could be entering a long-overdue pullback, which some analysts believe would be a healthy cool down. The bond market is unnerving stock investors.

Source: CNN January 30, 2018 13:58 UTC