Stocks Hitting 52-Week Highs

shares rose 1.95 percent to touch a new 52-week high of $56.57. FBR Capital upgraded Six Flags from Market Perform to Outperform.

shares gained 3.52 percent to reach a new 52-week high of $20.60. American Independence shares have gained 85.48 percent over the past 52 weeks, while the S&P 500 index has dropped 1 percent in the same period.

shares gained 14.93 percent to reach a new 52-week high of $10.24. Asta Funding's board has rejected Mangrove's unsolicited $9.00 per share tender offer.

shares rose 8.06 percent to touch a new 52-week high of $23.34. Middleburg Financial shares have surged 17.90 percent over the past 52 weeks, while the S&P 500 index has declined 1 percent in the same period.