GOLDMAN: These Are The 12 Cheapest Stocks In The Market

The S&P 500 booked a nice 13 percent return in 2012.

For 2013, Goldman Sachs' equity strategy team expects the index to climb to 1,575 by year-end.

However, they obviously expect some stocks to do better than others.

The firm's new "US Monthly Chartbook" includes a list of the 40 stocks with the most upside opportunity relative to Goldman analysts' price targets.

We pulled the top 12 stocks, which offer 30 to 50 percent upside relative to their recent prices.