Investment-grade commercial real estate prices gained 4.4% in the third quarter of this year. But, it's hard to tell if -- like brief blips of hope we've seen in consumer spending, unemployment and even luxury meals in London -- this is a change in the market or just a tease.

This increase in the MIT Center for Real Estate's transaction-based index (TBI) is the first up-tick in more than a year and the biggest gain since the middle of 2007. One quarter doesn't make a trend, cautions David Geltner, director of research at the MIT Center for Real Estate, but he says, "this is the strongest sign of a bottom that we've had in two years." The TBI reached 36.5% below its 2007 peak last quarter, up from 39% from the high-water mark in mid-2007.

SAP AG (NYSE: SAP) closed at $48.05 Friday.

Michael A Cusumano, a professor at the Sloan School of Management at the Massachusetts Institute of Technology, said in the New York Times on February 24, 2008 that Microsoft (NASDAQ: MSFT), "rather than acquire Yahoo (NASDAQ: YHOO), should pursue SAP." SAP is a German software company has more than 46,100 customers in more than 120 countries running applications from SAP.

SAP overall option implied volatility of 31 is near its 26-week average according to Track Data, suggesting non-directional risk.

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