Barron's this weekend wrote a bullish piece about the prospects for Corrections Corp. of America shares, pointing to the longer-term trend of government entities shifting spending to the private sector and to the benefits of a mooted conversion to a real estate investment trust. (That discussion has been spurred on in part by two hedge funds.) But CCA shares (Ticker: CXW) are up only about 1 percent in the first hour of Monday trading — albeit in the face of a down market — on what looks to be a heavy volume day.