GOSY - GECKOSYSTEMS INTL CO
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January 2013 December 2012 Year-to-Date
Volume Rank % Volume Rank % Volume Rank %
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Total Share Volume 28,912,040
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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 LLC 5,772,772 3 19 8,584,072 1 53 5,772,772 3 19
ATDF
AUTOMATED TRADING DESK FINANC 4,775,000 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 LLC 20,000 6 <1 - - - 20,000 6 <1
CANT
Cantor, Fitzgerald & Co. 10,000 7 <1 1,801,000 3 11 10,000 7 <1
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GOSY - GECKOSYSTEMS INTL CO
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February 2013 January 2013 Year-to-Date
Volume Rank % Volume Rank % Volume Rank %
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Total Share Volume 31,042,946
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NITE
Knight Capital Americas LLC 16,181,850 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 FINANC 960,000 3 3 4,775,000 4 16 5,735,000 4 9
UBSS
UBS Securities LLC 809,500 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 Securities 80,000 7 <1 - - - 80,000 8 <1
CDEL
Citadel Securities LLC 20,000 8 <1 20,000 6 <1 40,000 9 <1
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GOSY - GECKOSYSTEMS INTL CO
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March 2013 February 2013 Year-to-Date
Volume Rank % Volume Rank % Volume Rank %
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Total Share Volume 16,627,395
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NITE
Knight Capital Americas LLC 5,357,499 1 32 16,181,850 1 52 27,312,121 1 35
UBSS
UBS Securities LLC 5,249,998 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
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GOSY - GECKOSYSTEMS INTL CO
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April 2013 March 2013 Year-to-Date
Volume Rank % Volume Rank % Volume Rank %
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Total Share Volume 10,541,390
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ETRF
G1 Execution Services, LLC. 5,505,467 1 52 4,357,595 3 26 31,693,926 1 36
UBSS
UBS Securities LLC 3,332,000 2 31 5,249,998 2 31 9,391,498 4 10
NITE
Knight Capital Americas LLC 1,703,923 3 16 5,357,499 1 32 29,016,044 2 33
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www.geckosystems.com/investors/2013_MM_Volume_Report.htm