Volatile markets that have soared off the financial crisis lows are now adjusting to a world of slower growth and multiple obstacles ahead, Pimco's Mohamed El-Erian told CNBC.

Pimco's Mohamed El-Erian

El-Erian, co-CEO of the world's largest bond fund, said markets have shown four distinct characteristics lately: Volatility, interconnectedness, political sensitivity, and improbable movements.