GOSY - GECKOSYSTEMS INTL CO
Page of 1
  January 2013   December 2012   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 28,912,040 

ETRF
G1 Execution Services, LLC.9,159,268  1  31      4,309,135  2  27      9,159,268  1  31 
SUNR
Sunrise Securities Corp.8,825,000  2  30      170,000  7  1      8,825,000  2  30 
NITE
Knight Capital Americas LLC5,772,772  3  19      8,584,072  1  53      5,772,772  3  19 
ATDF
AUTOMATED TRADING DESK FINANC4,775,000  4  16      241,000  6  1      4,775,000  4  16 
CSTI
CANACCORD GENUITY INC.350,000  5  1 -      350,000  5  1 
CDEL
Citadel Securities LLC20,000  6  <1 -      20,000  6  <1 
CANT
Cantor, Fitzgerald & Co.10,000  7  <1      1,801,000  3  11      10,000  7  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  February 2013   January 2013   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 31,042,946 

NITE
Knight Capital Americas LLC16,181,850  1  52      5,772,772  3  19      21,954,622  1  36 
ETRF
G1 Execution Services, LLC.12,671,596  2  40      9,159,268  1  31      21,830,864  2  36 
ATDF
AUTOMATED TRADING DESK FINANC960,000  3  3      4,775,000  4  16      5,735,000  4  9 
UBSS
UBS Securities LLC809,500  4  2 -      809,500  5  1 
SUNR
Sunrise Securities Corp.220,000  5  <1      8,825,000  2  30      9,045,000  3  15 
VFIN
vFinance Investments, Inc.100,000  6  <1 -      100,000  7  <1 
VNDM
Vandham Securities80,000  7  <1 -      80,000  8  <1 
CDEL
Citadel Securities LLC20,000  8  <1      20,000  6  <1      40,000  9  <1 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  March 2013   February 2013   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 16,627,395 

NITE
Knight Capital Americas LLC5,357,499  1  32      16,181,850  1  52      27,312,121  1  35 
UBSS
UBS Securities LLC5,249,998  2  31      809,500  4  2      6,059,498  4  7 
ETRF
G1 Execution Services, LLC.4,357,595  3  26      12,671,596  2  40      26,188,459  2  34 
SUNR
Sunrise Securities Corp.1,662,303  4  9      220,000  5  <1      10,707,303  3  13 


GOSY - GECKOSYSTEMS INTL CO
Page of 1
  April 2013   March 2013   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 10,541,390 

ETRF
G1 Execution Services, LLC.5,505,467  1  52      4,357,595  3  26      31,693,926  1  36 
UBSS
UBS Securities LLC3,332,000  2  31      5,249,998  2  31      9,391,498  4  10 
NITE
Knight Capital Americas LLC1,703,923  3  16      5,357,499  1  32      29,016,044  2  33