GOSY - GECKOSYSTEMS INTL CO
Page of 1
  January 2011   December 2010   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 9,707,144 

NITE
Knight Capital Americas LLC5,010,893  1  51      8,604,292  1  50      5,010,893  1  51 
ETMM
G1 Execution Services, LLC4,239,551  2  43      5,033,054  2  29      4,239,551  2  43 
VFIN
vFinance Investments, Inc.438,200  3  4      243,500  6  1      438,200  3  4 
HDSN
RODMAN & RENSHAW, LLC13,000  4  <1      1,794,406  3  10      13,000  4  <1 
DOMS
Domestic Securities, Inc.5,500  5  <1      11,900  7  <1      5,500  5  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  February 2011   January 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 5,488,456 

NITE
Knight Capital Americas LLC3,494,039  1  63      5,010,893  1  51      8,504,932  1  55 
ETMM
G1 Execution Services, LLC1,842,917  2  33      4,239,551  2  43      6,082,468  2  40 
VFIN
vFinance Investments, Inc.45,000  3  <1      438,200  3  4      483,200  3  3 
AUTO
Automated Trading Desk34,000  4  <1 -      34,000  4  <1 
LAMP
Lampost Capital, L.C.34,000  4  <1 -      34,000  4  <1 
DOMS
Domestic Securities, Inc.25,500  5  <1      5,500  5  <1      31,000  5  <1 
HDSN
RODMAN & RENSHAW, LLC13,000  6  <1      13,000  4  <1      26,000  6  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  March 2011   February 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 8,301,962 

NITE
Knight Capital Americas LLC4,854,036  1  58      3,494,039  1  63      13,358,968  1  56 
ETMM
G1 Execution Services, LLC3,007,485  2  36      1,842,917  2  33      9,089,953  2  38 
HDSN
RODMAN & RENSHAW, LLC263,739  3  3      13,000  6  <1      289,739  4  1 
VFIN
vFinance Investments, Inc.122,400  4  1      45,000  3  <1      605,600  3  2 
DOMS
Domestic Securities, Inc.44,902  5  <1      25,500  5  <1      75,902  5  <1 
SUNR
Sunrise Securities Corp.5,000  6  <1 -      5,000  8  <1 
AUTO
Automated Trading Desk4,400  7  <1      34,000  4  <1      38,400  6  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  April 2011   March 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 12,212,894 

NITE
Knight Capital Americas LLC9,081,204  1  74      4,854,036  1  58      22,440,172  1  62 
ETMM
G1 Execution Services, LLC2,063,250  2  16      3,007,485  2  36      11,153,203  2  31 
VFIN
vFinance Investments, Inc.1,015,000  3  8      122,400  4  1      1,620,600  3  4 
HDSN
RODMAN & RENSHAW, LLC53,440  4  <1      263,739  3  3      343,179  4  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  May 2011   April 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 5,478,971 

NITE
Knight Capital Americas LLC3,907,612  1  71      9,081,204  1  74      26,347,784  1  63 
ETMM
G1 Execution Services, LLC1,478,359  2  26      2,063,250  2  16      12,631,562  2  30 
VFIN
vFinance Investments, Inc.53,000  3  <1      1,015,000  3  8      1,673,600  3  4 
HDSN
RODMAN & RENSHAW, LLC30,000  4  <1      53,440  4  <1      373,179  4  <1 
DOMS
Domestic Securities, Inc.10,000  5  <1 -      85,902  5  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  June 2011   May 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 6,599,121 

NITE
Knight Capital Americas LLC3,284,264  1  49      3,907,612  1  71      29,632,048  1  62 
ETMM
G1 Execution Services, LLC1,659,357  2  25      1,478,359  2  26      14,290,919  2  29 
AUTO
Automated Trading Desk1,018,000  3  15 -      1,056,400  4  2 
VFIN
vFinance Investments, Inc.330,000  4  5      53,000  3  <1      2,003,600  3  4 
HDSN
RODMAN & RENSHAW, LLC207,500  5  3      30,000  4  <1      580,679  5  1 
UBSS
UBS Securities LLC100,000  6  1 -      100,000  6  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  July 2011   June 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 4,411,227 

NITE
Knight Capital Americas LLC1,824,697  1  41      3,284,264  1  49      31,456,745  1  60 
VFIN
vFinance Investments, Inc.1,101,497  2  24      330,000  4  5      3,105,097  3  5 
AUTO
Automated Trading Desk725,000  3  16      1,018,000  3  15      1,781,400  4  3 
ETMM
G1 Execution Services, LLC700,033  4  15      1,659,357  2  25      14,990,952  2  28 
UBSS
UBS Securities LLC60,000  5  1      100,000  6  1      160,000  6  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  August 2011   July 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 1,657,400 

NITE
Knight Capital Americas LLC809,792  1  48      1,824,697  1  41      32,266,537  1  59 
ETMM
G1 Execution Services, LLC585,608  2  35      700,033  4  15      15,576,560  2  28 
VFIN
vFinance Investments, Inc.161,000  3  9      1,101,497  2  24      3,266,097  3  6 
AUTO
Automated Trading Desk101,000  4  6      725,000  3  16      1,882,400  4  3 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  September 2011   August 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 4,587,048 

NITE
Knight Capital Americas LLC2,106,600  1  45      809,792  1  48      34,373,137  1  58 
AUTO
Automated Trading Desk1,240,001  2  27      101,000  4  6      3,122,401  4  5 
ETMM
G1 Execution Services, LLC1,120,450  3  24      585,608  2  35      16,697,010  2  28 
VFIN
vFinance Investments, Inc.119,997  4  2      161,000  3  9      3,386,094  3  5 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  October 2011   September 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 9,031,633 

ETMM
G1 Execution Services, LLC4,492,997  1  49      1,120,450  3  24      21,190,007  2  31 
NITE
Knight Capital Americas LLC2,829,676  2  31      2,106,600  1  45      37,202,813  1  55 
AUTO
Automated Trading Desk656,954  3  7      1,240,001  2  27      3,779,355  4  5 
HDSN
RODMAN & RENSHAW, LLC595,000  4  6 -      1,175,679  5  1 
VFIN
vFinance Investments, Inc.417,806  5  4      119,997  4  2      3,803,900  3  5 
VERT
The Vertical Trading Group39,200  6  <1 -      39,200  8  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  November 2011   October 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 2,124,126 

ETMM
G1 Execution Services, LLC1,076,981  1  50      4,492,997  1  49      22,266,988  2  31 
NITE
Knight Capital Americas LLC792,145  2  37      2,829,676  2  31      37,994,958  1  54 
AUTO
Automated Trading Desk155,000  3  7      656,954  3  7      3,934,355  3  5 
UBSS
UBS Securities LLC40,000  4  1 -      200,000  6  <1 
ASCM
ASCENDIANT CAPITAL MARKETS, L40,000  4  1 -      40,000  8  <1 
VFIN
vFinance Investments, Inc.15,000  5  <1      417,806  5  4      3,818,900  4  5 
SUNR
Sunrise Securities Corp.5,000  6  <1 -      10,000  11  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  December 2011   November 2011   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 12,125,699 

NITE
Knight Capital Americas LLC3,713,159  1  30      792,145  2  37      41,708,117  1  51 
AUTO
Automated Trading Desk2,002,500  2  16      155,000  3  7      5,936,855  3  7 
ETMM
G1 Execution Services, LLC1,988,129  3  16      1,076,981  1  50      24,255,117  2  29 
VERT
The Vertical Trading Group1,819,030  4  15 -      1,858,230  5  2 
UBSS
UBS Securities LLC1,060,200  5  8      40,000  4  1      1,260,200  7  1 
VFIN
vFinance Investments, Inc.656,500  6  5      15,000  5  <1      4,475,400  4  5 
HDSN
RODMAN & RENSHAW, LLC427,241  7  3 -      1,602,920  6  1 
ASCM
ASCENDIANT CAPITAL MARKETS, L400,000  8  3      40,000  4  1      440,000  8  <1 
BMAS
Burt Martin Arnold Securities58,940  9  <1 -      58,940  10  <1