With stocks sharply higher over the past month, and the looming seasonal uncertainty of the markets, it's time to raise some cash.

That's the assessment from Sameer Samana, global equity strategist at Wells Fargo Investment Institute, which has a year-end target of 2,800-2,900 on the S&P 500. The broad index currently stands at roughly 2,897.

Samana expects the consumer discretionary sector to lead the markets in the coming months.