May 2009's Stem Cell Sector Stock Price Winners and Losers

We're starting something new with May's Stem Cell Sector results.  Starting this month we're providing a chart of end of month stock price and company market values as we always have. But now we're adding a comparison of individual company stock price with the prior month and showing the percentage change in individual prices from the end of one month to the end of the next. Sector Company market values are then ranked by percentage stock price change month to month, highest to lowest.

May's largest percentage stock price increases among our 21 company Stem Cell Sector were:

1. Neostem Inc.(NBS) - 121%
2. International Stem Cell Corp. (ISCO.OB) - 113%
3. Cytori Therapeutics (CYTX) - 112%

May's largest percentage stock price decreases in our 21 company Stem Cell Sector were:

1. Hepalife Technologies (HPLF.OB) - (-62%)
2. Biomatrix Scientific (BMSN.OB) - (-43%)
3. Medistem Laboratories (MEDS.PK) - (-20%)

Comparative 21 Company Stem Cell Sector chart May 31 vs. April 30, 2009:

• Stem Cell Sector Individual Market Values: EOM 5-09 vs 4-09

The sector as a whole increased in value almost 20% while the nasdaq composite increased 3.3%.

• Sector Total Market Value By Month