May 15, 2007     Tiger Research       http://www.tigersoft.com

WHAT PREDICTS STOCKS UP
MORE THAN 40% IN LAST MONTH?

(C) 2007 William Schmidt, Ph.D.

Only 20 of the 7000 stocks achieved this.  2/7 of 1% of all stocks.

Tiger's Power-Ranker readily lets you find stocks showing these conditions from large
universes of stocks.  Our book "Explosive Super Stocks" provides more details and
is based on a wide range of market environments.  Our Weekly Elite Stock Professional
Service looks closely for these stocks.

Predictive Factors:
      
Insider-Informed Buying (Tiger Accum. Index over .50)
        
IDSA, GEL, SIF, SPAN, ATRO, TWIN, DJ, DRYS, ENG, RCCC , TRCR, AMZN, TRT, TRBR   
       Flat topped breakouts

          
NGA, IDSA , GEL, SIF, SPAN, TWIN, CPY, DRYS, RCCC, TRCR, AL, AMZN, OCAS, SNHY, TRBR  
      
Unusual volume on Breakout
         
NGA, INSW, IDSA, GEL, SIF, SPAN. ATRO, TWIN, CPY, DJ, DRYS, ENG, RCCC, TRCR, AMZN , TRT, SNHY, TRBR   
        Gap on Breakout
         
NGA, INSW, IDSA, GEL, SPAN, ATRO, TWIN, CPY, ENG, TRCR, AL, AMZN, TRT, OCAS, SNHY, TRBR 
        Price Move above rising resistance-line
         
IDSA , SIF, SPAN. ATRO, TWIN, CPY. DJ, DRYS, TRCR, AMZN, TRT, SNHY   
        Tiger Major "B10"
         
NGA. INSW , GEL, SPAN. TWIN, CPY , DJ, DRYS, RCCC, TRCR, AL, AMZN, TRT 
        Tiger Major "B12"
         
GEL, SIF, SPAN, ATRO, TWIN, DJ, DRYS, ENG, RCCC, TRCR, AMZN , TRBR
        Tiger Major "B20"
         
NGA, IDSA , GEL, SIF, SPAN. ATRO, TWIN, CPY, DJ, ENG, RCCC , TRCR, AL, AMZN , TRT, OCAS, SNHY, TRBR 
        Tiger Major "B24"
         
SIF. SPAN. TWIN , DRYS, RCCC, TRCR, AMZN, TRT, TRBR 
         Three or Four Major Buys at Same Time
        
GEL, SIF, SPAN, TWIN, DJ, DRYS, RCCC , TRCR, AMZN, TRT , TRBR
Biggest Percent Gainers for Last Month
          Days back= 21 
 4 / 13 / 2007 - 5 / 14 / 2007 
Rank          Symbol        Name                         Price         Pct.Gain      Long Term      Current
                                                                                     Accumulation   Accumulation 
                                                                                     (0-200)        +.50 = Insider Informed Buying
---------     -----------------------------------       ----------    ------------  -----------     ------------------------------
 1            NGA           N Amer Galvaniz              15.25         127%          89             .15 
 2            INSW          Insweb Corp                   7.06         116%          69             .11  
 3            IDSA          Industrial Svcs Of Amer      16.08         92%           132            .15 
 4            GEL           Genesis Energy (L.P.)        35.35         71%           132            .46 high  
 5            SIF           Sifco Industries Inc         18.25         68%           100            .39    
 6            SPAN          Span-Amer Medical Systs      26.6          63%           153            .29  
 7            ATRO          Astronics Corp               27.88         61%           135            .56 high    
 8            TWIN          Twin Disc Inc                71.8          57%           144            .51 high  
 9            CPY           Cpi Corp                     82.45         55%           114            .18
 10           DJ            Dow Jones & Co Inc           53.77         55%            87            .28  
 11           DRYS          Dryships                     39.92         54%           143            .29       
 12           ENG           Englobal Corp                 9.5          54%           151            .48 high    
 13           RCCC          Rural Cellular Corp          28.38         49%           152            .27  
 14           TRCR          Transcend Services Inc       16.58         48%           174            .40 high 
 15           AL            Alcan Inc.                   79.54         45%           138            .17
 16           AMZN          Amazon.Com Inc               61.7          45%           146            .45 high
 17           TRT           Trio-Tech Internat           20.9          42%           132            .31  
 18           OCAS          Ohio Casualty Corp           43.01         41%           130           -.04 low 
 19           SNHY          Sun Hydraulics Corp          37.81         40%           145            .39
 20           TRBR          Trailer Bridge Inc           12.66         40%            83            .49 high

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