Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE (40 MEGAWATT HOURS PER PEAK DAY) : CFTC Code #064657 Open Interest is 186,607 : : Positions : : 114,404 113,759 3,183 3,439 54,348 355 3,082 9,781 95 97 1,120 : : : : Changes from: June 8, 2010 : : 2,229 2,186 477 55 716 -112 307 -197 -5 44 14 : : : : Percent of Open Interest Represented by Each Category of Trader : : 61.3 61.0 1.7 1.8 29.1 0.2 1.7 5.2 0.1 0.1 0.6 : : : : Number of Traders in Each Category Total Traders: 46 : : 29 25 5 . 6 . . 4 . . . : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE (40 MEGAWATT HOURS PER PEAK DAY) : CFTC Code #06465H Open Interest is 19,926 : : Positions : : 12,123 12,703 3,205 1,680 3,351 0 500 220 0 362 0 : : : : Changes from: June 8, 2010 : : 187 195 126 30 -28 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 60.8 63.7 16.1 8.4 16.8 0.0 2.5 1.1 0.0 1.8 0.0 : : : : Number of Traders in Each Category Total Traders: 30 : : 17 20 4 . 5 0 . . 0 . 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- NORTH ILL CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE (40 MEGAWATT HOURS PER PEAK DAY) : CFTC Code #06465I Open Interest is 13,831 : : Positions : : 9,455 10,298 1,009 722 1,615 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : . . . . . . . . . . . : : : : Percent of Open Interest Represented by Each Category of Trader : : 68.4 74.5 7.3 5.2 11.7 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 20 : : 13 11 . . . 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE (2.5 MEGAWATTS PER OFF PEAK HRS) : CFTC Code #06465M Open Interest is 29,899 : : Positions : : 18,251 14,879 1,030 3,802 7,714 0 1,720 70 0 690 130 : : : : Changes from: June 8, 2010 : : -158 82 24 -186 210 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 61.0 49.8 3.4 12.7 25.8 0.0 5.8 0.2 0.0 2.3 0.4 : : : : Number of Traders in Each Category Total Traders: 28 : : 17 15 . 6 6 0 . . 0 . . : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE (2.5 MEGAWATTS PER OFF PEAK HRS) : CFTC Code #06465S Open Interest is 12,529 : : Positions : : 6,930 7,326 2,008 2,557 1,155 160 0 260 370 0 0 : : : : Changes from: June 8, 2010 : : 24 72 48 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 55.3 58.5 16.0 20.4 9.2 1.3 0.0 2.1 3.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 21 : : 11 11 . . 4 . 0 . . 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- ISO NEW ENG CONN PEAK SWAP - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #06465T Open Interest is 32,237 : : Positions : : 23,585 18,304 3,297 5,235 5,100 0 0 0 0 3,555 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 73.2 56.8 10.2 16.2 15.8 0.0 0.0 0.0 0.0 11.0 0.0 : : : : Number of Traders in Each Category Total Traders: 20 : : 9 6 . . . 0 0 0 0 . 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- CINERGY CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE (40 MEGAWATT HOURS PER PEAK DAY) : CFTC Code #064A01 Open Interest is 48,306 : : Positions : : 31,917 35,491 3,271 19 11,380 169 0 708 3 0 54 : : : : Changes from: June 8, 2010 : : -68 256 91 -171 235 -8 0 -11 3 -2 27 : : : : Percent of Open Interest Represented by Each Category of Trader : : 66.1 73.5 6.8 0.0 23.6 0.4 0.0 1.5 0.0 0.0 0.1 : : : : Number of Traders in Each Category Total Traders: 30 : : 19 19 6 . 5 . 0 . . 0 . : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- CINERGY OFF PEAK LMP SWAP - NEW YORK MERCANTILE EXCHANGE (2.5 MW X OFF PEAK HOURS PER MONTH) : CFTC Code #064A02 Open Interest is 10,442 : : Positions : : 6,890 3,442 1,300 4,996 1,058 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 92 116 0 -24 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 66.0 33.0 12.4 47.8 10.1 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 22 : : 14 12 . 4 4 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM N ILL PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #064A34 Open Interest is 55,766 : : Positions : : 53,942 42,497 1,057 12,673 510 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 105 105 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 96.7 76.2 1.9 22.7 0.9 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 20 : : 9 7 . . . 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM N ILL OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 5 Megawatt Hours) : CFTC Code #064A35 Open Interest is 817,310 : : Positions : : 771,053 607,668 41,577 204,962 4,680 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 94.3 74.3 5.1 25.1 0.6 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 20 : : 10 5 . . . 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM PPL PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #064A52 Open Interest is 40,095 : : Positions : : 33,950 37,139 5,804 2,805 0 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 84.7 92.6 14.5 7.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 23 : : 10 10 4 . 0 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM PPL OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 5 Megawatt Hours) : CFTC Code #064A53 Open Interest is 587,003 : : Positions : : 487,549 540,203 99,454 46,800 0 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 83.1 92.0 16.9 8.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 21 : : 8 11 4 . 0 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM PSEG PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #064A54 Open Interest is 82,260 : : Positions : : 29,874 53,115 52,235 29,145 0 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 36.3 64.6 63.5 35.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 26 : : 10 12 5 . 0 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM PSEG OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 5 Megawatt Hours) : CFTC Code #064A55 Open Interest is 1,384,573 : : Positions : : 455,406 936,165 929,167 448,408 0 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 32.9 67.6 67.1 32.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 25 : : 11 10 5 . 0 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM WESTERN PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #064A56 Open Interest is 175,803 : : Positions : : 134,920 103,777 38,647 71,510 296 0 0 0 1,940 220 0 : : : : Changes from: June 8, 2010 : : 6,152 7,842 2,550 860 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 76.7 59.0 22.0 40.7 0.2 0.0 0.0 0.0 1.1 0.1 0.0 : : : : Number of Traders in Each Category Total Traders: 42 : : 21 22 . 7 . 0 0 0 . . 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM WESTERN OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE (Contracts of 50 MEGAWATT HOURS) : CFTC Code #064A57 Open Interest is 2,883,408 : : Positions : :2,287,604 1,643,516 591,818 1,235,906 3,986 0 0 0 0 0 0 : : : : Changes from: June 8, 2010 : : 93,760 140,560 46,800 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 79.3 57.0 20.5 42.9 0.1 0.0 0.0 0.0 0.0 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 36 : : 20 16 . 6 . 0 0 0 0 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM WESTERN PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #064A58 Open Interest is 59,975 : : Positions : : 51,078 54,322 6,175 366 2,722 0 0 0 0 2,565 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 85.2 90.6 10.3 0.6 4.5 0.0 0.0 0.0 0.0 4.3 0.0 : : : : Number of Traders in Each Category Total Traders: 30 : : 19 15 . . . 0 0 0 0 . 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- PJM WESTERN OFF PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE (Contracts of 5 Megawatt Hours) : CFTC Code #064A59 Open Interest is 1,012,849 : : Positions : : 874,639 835,858 44,717 13,298 93,493 0 0 0 0 70,200 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 86.4 82.5 4.4 1.3 9.2 0.0 0.0 0.0 0.0 6.9 0.0 : : : : Number of Traders in Each Category Total Traders: 28 : : 16 15 . . 4 0 0 0 0 . 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- ISO NEW ENG INT HUB PEAK SWAP - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #064A60 Open Interest is 56,165 : : Positions : : 39,726 34,887 2,031 11,176 9,992 0 0 0 4,416 110 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 70.7 62.1 3.6 19.9 17.8 0.0 0.0 0.0 7.9 0.2 0.0 : : : : Number of Traders in Each Category Total Traders: 35 : : 16 20 . 5 5 0 0 0 . . 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- NYISO ZONE 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE (Contracts of 80 Megawatt Hours) : CFTC Code #064A66 Open Interest is 11,353 : : Positions : : 8,995 7,457 1,430 2,908 453 0 0 0 258 0 0 : : : : Changes from: June 8, 2010 : : 86 86 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 79.2 65.7 12.6 25.6 4.0 0.0 0.0 0.0 2.3 0.0 0.0 : : : : Number of Traders in Each Category Total Traders: 23 : : 15 11 . . . 0 0 0 . 0 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- ISO NEW ENG CONN OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE (Contracts of 5 Megawatt Hours) : CFTC Code #064A71 Open Interest is 578,998 : : Positions : : 424,389 325,825 61,009 95,228 93,600 0 0 0 0 64,345 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 73.3 56.3 10.5 16.4 16.2 0.0 0.0 0.0 0.0 11.1 0.0 : : : : Number of Traders in Each Category Total Traders: 21 : : 10 7 4 . . 0 0 0 0 . 0 : ---------------------------------------------------------------------------------------------------------------- Disaggregated Commitments of Traders- Options and Futures Combined Positions as of June 15, 2010 : Reportable Positions : :------------------------------------------------------------------------------------------------------------- : : Producer/Merchant : : : : : Processor/User : Swap Dealers : Managed Money : Other Reportables : : Long : Short : Long : Short :Spreading: Long : Short :Spreading: Long : Short :Spreading : ---------------------------------------------------------------------------------------------------------------- ISO NEW ENG HUB OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE (Contracts of 5 Megawatt Hours) : CFTC Code #064A78 Open Interest is 1,111,448 : : Positions : : 829,569 665,097 26,389 231,726 186,073 0 23,400 0 69,417 5,152 0 : : : : Changes from: June 8, 2010 : : 0 0 0 0 0 0 0 0 0 0 0 : : : : Percent of Open Interest Represented by Each Category of Trader : : 74.6 59.8 2.4 20.8 16.7 0.0 2.1 0.0 6.2 0.5 0.0 : : : : Number of Traders in Each Category Total Traders: 36 : : 19 16 . 5 5 0 . 0 . . 0 : ----------------------------------------------------------------------------------------------------------------
Updated June 18, 2010