"With state governments going bankrupt, the last thing bureaucrats want to do is spend precious resources on managing their prison systems," explains growth stock expert Marc Lichtenfeld.

The senior analyst for Xcelerated Profits Report suggests, "For-profit institutions are usually able to provide prison services more efficiently than the government can. And there's one company that stands out -- The GEO Group (NYSE: GEO)."

"Nearly two-and-a-half million people are behind bars in American prisons. The U.S. incarceration rate is five times higher than the world average and the U.S. prison population is still rising.

Goldman Sachs Group (NYSE: GS) -- volatility up; Global Equity Opportunities (GEO) fund leverage reduced on $3 billion infusion. GS is recently trading up $4.40 to $184.97. GS says, "given the market dislocation, the performance of GEO has suffered significantly. Our response has been to reduce risk and leverage." GS, along with C.V. Starr, Perry Capital LLC and Eli Broad, are making a $3 billion equity investment in GEO. GS said on its conference call it has de-leveraged its GEO fund from six times leveraged to three and a half after the capital infusion. GS September option implied volatility of 51 is above its 26-week average of 30 according to Track Data, suggesting larger risk.

Amex Financial Select Sector SPDR (AMEX: XLF) -- September volatility at 37. XLF seeks to replicate the total return of the Financial Select sector of the S&P 500 Index. XLF is recently up $0.63 to $33.98. Citigroup Inc. (NYSE: C), Bank of America Corp. (NYSE: BAC), American International Group Inc. (NYSE: AIG), JP Morgan Chase & Co. (NYSE: JPM), Wells Fargo & Co. (NYSE: WFC), Wachovia Corp. (NYSE: WB) and GS are components of the XLF. XLF September at the money option implied volatility of 37 is above its 26-week average of 20 according to Track Data, suggesting larger risk.

Volatility Index S&P 500 Options (VIX) down 1.50 to 26.80.

Daily options Update is provided by Stock Specialist Paul Foster of theflyonthewall.com.

Stock screeners are tools that let investors filter through a large number of stocks according to chosen criteria. It is important to remember that a stock screener is just a tool and every investment should be analyzed on its own merits to make sure it fits with your personal portfolio and risk characteristics. My weekly column finds interesting investment opportunities with the help of our Stock Screener.

Since two of the stocks I covered in the Stock Screener section had such wild movements in such a short time, I've decided to quickly take a look at all the stocks I've covered here, see what major news recently affected them and how they reacted. All returns are as of May 2nd close.

Solar Energy Stocks

On March 27th, I went over some solar energy stocks. I looked at Trina Solar Ltd. (NYSE: TSL) and Suntech Power Holdings Co., Ltd. (NYSE: STP), concluding with: "I think it may not be too late to jump on the Trina bandwagon. Suntech could prove a long-term solid player as well."

Since then, TSL returned over 24% and STP returned 5.8%.
The main catalyst in the solar energy stock was a court ruling that could pave the way to more regulations and have a positive impact on alternative energy stocks.

Stock screeners are tools that let investors filter through a large number of stocks according to chosen criteria. It is important to remember that a stock screener is just a tool and every investment should be analyzed on its own merits to make sure it fits with your personal portfolio and risk characteristics. My weekly column finds interesting investment opportunities with the help of our Stock Screener.

To be honest, I decided on this stock screener quite by chance. I originally had my mind set on the Cosmetic & Skin Care industry for this week, but just above it was the Correctional Institutions industry. When prison management companies first became public I was so repulsed by the idea that I never followed up on them. Now, some ten years later, and after their performance the past year, I decided to take another look.

The four companies in the industry (in order of market capitalization) are Corrections Corporations of America (NYSE: CXW) with a $3.39 billion market cap, The Geo Group, Inc. (NYSE: GEO) with a market value of $1.22 billion, Cornell Companies, Inc. (NYSE: CRN) with a $302.52 million market cap and finally, the OTC traded (hence I won't cover it here) Avalon Correctional Services, Inc. (OTC: CITY).

Why even bother? Well, look at the year-to-date returns and decide for yourselves (the bottom, yellow line is the S&P 500), the rest, going up, are Cornell, CCA and Geo.

Better yet, one year returns are 54% for Cornell, 91% for CCA and 115% for Geo. So the question is -- have they run out of room to grow?