GROUP ONE TRADING, L.P.
440 S. LASALLE STREET, CHICAGO, Illinois, 60605, (312) 431-2841
Report Date: 03/31/2013
Position Statistics:
| Total Positions | 1,742 |
| New Positions | 452 |
| Increased Positions | 914 |
| Decreased Positions | 808 |
| Positions with Activity | 1,722 |
| Sold Out Positions | 434 |
| Total Mkt Value (in $ millions) |
520 |
Sector Weighting
| Basic Materials | 6.24% |
| Capital Goods | 1.93% |
| Conglomerates | 0.68% |
| Consumer Cyclical | 2.43% |
| Consumer/Non-Cyclical | 5.06% |
| Energy | 12.92% |
| Financial | 12.56% |
| Healthcare | 10.91% |
| Services | 28.56% |
| Technology | 16.05% |
| Transportation | 1.26% |
| Utilities | 0.94% |
Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.
1,742 Positions as of 03/31/2013
| Company | Class | Value of Shares ($1,000s) |
Change in Value ($1,000s) | Change (%) | Shares Held |
|---|---|---|---|---|---|
| DTE ENERGY CO | COM | 223 | -61 | (21.64) | 3,260 |
| FIRST HORIZON NATL CORP | COM | 222 | 140 | 169.54 | 19,984 |
| TRIPADVISOR INC | COM | 222 | -864 | (79.58) | 3,593 |
| MCDONALDS CORP | COM | 221 | 50 | 29.41 | 2,200 |
| PARAMOUNT GOLD & SILVER CORP | COM | 219 | -76 | (25.77) | 163,522 |
| SM ENERGY CO | COM | 219 | -298 | (57.69) | 3,552 |
| BURGER KING WORLDWIDE INC | COM | 218 | -43 | (16.63) | 11,742 |
| DOMTAR CORP | COM NEW | 218 | 65 | 42.17 | 3,203 |
| ROGERS COMMUNICATIONS INC | CL B | 214 | 113 | 111.91 | 4,607 |
| COMMUNITY HEALTH SYS INC NEWCO | COM | 213 | 213 | New | 4,937 |
| SOTHEBYS | COM | 212 | 212 | New | 5,829 |
| BLACKSTONE GROUP L P | COM UNIT LTD | 211 | -841 | (79.93) | 9,322 |
| SIMON PPTY GROUP INC NEW | COM | 210 | 53 | 33.44 | 1,201 |
| 3M CO | COM | 210 | 66 | 46.15 | 1,900 |
| TELEFONICA S A | SPONSORED ADR | 209 | -926 | (81.59) | 15,048 |
| SOUTHCROSS ENERGY PARTNERS L P | COM UNIT LTDPT | 209 | 173 | 488.95 | 9,647 |
| AMICUS THERAPEUTICS INC | COM | 209 | 5 | 2.41 | 61,413 |
| CAMECO CORP | COM | 207 | 204 | 7,804.20 | 9,406 |
| AEGEAN MARINE PETROLEUM NETWRK | SHS | 206 | 196 | 2,103.53 | 24,944 |
| POWER ONE INC NEW | COM | 205 | 79 | 62.32 | 32,273 |
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