The stock markets have been on a roller-coaster ride in recent sessions. However, while volatility is ruling for now, some market watchers see a rising trend on the near horizon. Setting the tone for this bullish outlook is Credit Suisse strategist Jonathan Golub, who raised his S&P 500 outlook twice in the last two months. Back in January, Golub predicted that the index would hit 4,200 by the end of this year; he has now upgraded that target to 4,300, which implies an upside of 11%.