13F filer · CIK 1352851 ↗
Magnetar Financial LLC
You are looking at Q3 2017. See the latest, Q2 2026 →
Reported value
$5.52B
−15% on the quarter before
Positions
703
309 new · 374 sold out
Top 10
36.5%
of the value
Est. gain
+$68.7M
on stocks held all quarter
Est. return
+2.1%
on those stocks since Q2 2017
Positions as of Sep 30, 2017, from Magnetar Financial LLC's 13F filing with the SEC. A 13F lists a manager's US-listed stocks and options at a quarter end and is filed up to 45 days later, so the fund may hold something else today. It leaves out short positions, cash and holdings outside the US.
Portfolio at a glance
- New
- Added
- Cut
- Same
- Options
The 24 largest positions, 61% of the reported value, each sized by its share, colored by what the fund did with it since Q2 2017. Striped tiles are options.
Largest buys
Since Q2 2017, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.
- Rockwell Collins Inc~$183.9MNew · 0.0% → 3.3%+1,406,976 shares
- Scripps Networks Interact In~$149.7MNew · 0.0% → 2.7%+1,742,457 shares
- Avista Corp~$142.3MNew · 0.0% → 2.6%+2,748,866 shares
- Orbital Atk Inc~$109.5MAdded · 0.0% → 2.0%+822,652 shares
- Kite Pharma Inc~$99.4MNew · 0.0% → 1.8%+552,659 shares
- Nxstage Medical Inc~$84.9MNew · 0.0% → 1.5%+3,077,070 shares
- Centennial Resource Dev Inc~$72.9MNew · 0.0% → 1.3%+4,073,911 shares
- Calgon Carbon Corp~$51.0MNew · 0.0% → 0.9%+2,383,349 shares
- Wgl Hldgs Inc~$49.4MAdded · 1.3% → 2.4%+586,112 shares
- Energy Transfer Partners Lp~$47.9MAdded · 0.0% → 0.9%+2,620,000 shares
Largest sells
Since Q2 2017, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.
- Reynolds American Inc~$273.7MSold out · 4.2% → 0.0%−4,207,486 shares
- Ishares TrPUT~$166.4MSold out · 2.6% → 0.0%−3,300,000 underlying
- Mobileye N V Amstelveen~$151.9MSold out · 2.3% → 0.0%−2,419,115 shares
- Vca Inc~$150.0MSold out · 2.3% → 0.0%−1,625,346 shares
- Panera Bread Co~$132.8MSold out · 2.0% → 0.0%−422,049 shares
- Westar Energy Inc~$127.2MSold out · 2.0% → 0.0%−2,399,932 shares
- Kate Spade & Co~$117.6MSold out · 1.8% → 0.0%−6,362,202 shares
- Swift Transn Co~$105.8MSold out · 1.6% → 0.0%−3,991,760 shares
- Dupont Fabros Technology Inc~$89.6MSold out · 1.4% → 0.0%−1,464,499 shares
- SPDR S&P 500 ETF TrPUT~$84.6MSold out · 1.3% → 0.0%−350,000 underlying
Holdings
As of Sep 30, 2017. Changes are in shares against Jun 30, 2017, so a price move alone never reads as a buy or a sale.
| Holding | Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Time Warner IncCOM NEW · shares +12% · price +2.0% | 6.8% | $373.7M | +$6.7M | ||||||||
| Nxp Semiconductors N VCOM · shares +4.7% · price +3.3% | 5.8% | $322.2M | +$9.9M | ||||||||
| Rockwell Collins IncCOM · shares New | 3.3% | $183.9M | — | ||||||||
| Monsanto Co NewCOM · shares +20% · price +1.2% | 3.3% | $183.6M | +$1.9M | ||||||||
| Bard C R IncCOM · shares +12% · price +1.4% | 3.2% | $174.2M | +$2.1M | ||||||||
| Level 3 Communications IncCOM NEW · shares −13% · price −10.1% | 3.1% | $170.3M | −$19.2M | ||||||||
| Rice Energy IncCOM · shares +7.5% · price +8.7% | 3.1% | $169.5M | +$12.6M | ||||||||
| Scripps Networks Interact InCL A COM · shares New | 2.7% | $149.7M | — | ||||||||
| Tribune Media CoCL A · shares +1.5% · price +0.2% | 2.6% | $142.8M | +$310,137 | ||||||||
| Avista CorpCOM · shares New | 2.6% | $142.3M | — | ||||||||
| Wgl Hldgs IncCOM · shares +59% · price +0.9% | 2.4% | $133.5M | +$770,223 | ||||||||
| Brocade Communications Sys ICOM NEW · shares +17% · price −5.2% | 2.4% | $131.8M | −$6.2M | ||||||||
| Akorn IncCOM · shares −23% · price −1.0% | 2.0% | $111.3M | −$1.2M | ||||||||
| Orbital Atk IncCOM · shares +33,729% · price +35.3% | 2.0% | $109.9M | +$84,777 | ||||||||
| Digitalglobe IncCOM NEW · shares +11% · price +5.9% | 1.9% | $102.3M | +$5.1M | ||||||||
| Kite Pharma IncCOM · shares New | 1.8% | $99.4M | — | ||||||||
| Royal Dutch Shell PlcSPON ADR B · shares −7.2% · price +14.9% | 1.7% | $91.3M | +$11.8M | ||||||||
| Kinder MorganCOM · shares −0.9% · price +0.1% | 1.6% | $87.8M | +$92,492 | ||||||||
| Western Gas Partners LpCOM UNIT LP IN · shares +49% · price −8.3% | 1.6% | $86.8M | −$5.3M | ||||||||
| Nxstage Medical IncCOM · shares New | 1.5% | $84.9M | — | ||||||||
| Alere IncCOM · shares +29% · price +1.6% | 1.4% | $78.3M | +$950,763 | ||||||||
| Centennial Resource Dev IncCL A · shares New | 1.3% | $72.9M | — | ||||||||
| Pioneer Nat Res CoCOM · shares −6.4% · price −7.5% | 1.3% | $71.6M | −$5.8M | ||||||||
| Astoria Finl CorpCOM · shares +1.3% · price +6.7% | 1.3% | $69.3M | +$4.3M | ||||||||
| Spectra Energy Partners LpCOM · shares −9.4% · price +3.4% | 1.2% | $68.4M | +$2.3M | ||||||||
| Total · 703 positions | 100% | $5.52B | +$68.7M |
Price is a stock's reported value over its shares at the quarter end. The estimated gain is the shares held at both quarter ends times the change in that price: shares bought or sold during the quarter add nothing, options are left out, and a stock split is read into the earlier share count and price.
What made money
From Q2 2017 to Q3 2017: 379 stocks held throughout, up $68.7M (+2.1%).
- Rice Energy Inc+$12.6M+9%
- Royal Dutch Shell Plc+$11.8M+15%
- Encana Corp+$11.3M+34%
- Dell Technologies Inc+$10.5M+26%
- Nxp Semiconductors N V+$9.9M+3%
- Pioneer Nat Res Co−$5.8M−8%
- Brocade Communications Sys I−$6.2M−5%
- Teekay Offshore Partners L P−$6.8M−17%
- C&J Energy Svcs Inc New−$7.2M−13%
- Level 3 Communications Inc−$19.2M−10%
Estimated as in the holdings table: shares held at both quarter ends times the change in price; options left out, 1 split read into the share counts.
Reported value by quarter
The total value of each quarter's 13F at that quarter end. It moves with prices as well as with buying and selling. Pick a quarter to see what the fund held then.
Every quarter's filing
| Quarter | Reported value | Filing | |
|---|---|---|---|
| Q2 2026 | Aug 14, 2026 | $10.96B+11% | SEC ↗ |
| Q1 2026 | May 13, 2026 | $9.84B−4% | SEC ↗ |
| Q4 2025 | Feb 17, 2026 | $10.21B−38% | SEC ↗ |
| Q3 2025 | Nov 13, 2025 | $16.50B−20% | SEC ↗ |
| Q2 2025 | Aug 12, 2025 | $20.65B+171% | SEC ↗ |
| Q1 2025 | May 15, 2025 | $7.61B+75% | SEC ↗ |
| Q4 2024 | Feb 11, 2025 | $4.36B−6% | SEC ↗ |
| Q3 2024 | Nov 13, 2024 | $4.62B−4% | SEC ↗ |
| Q2 2024 | Aug 14, 2024 | $4.80B+7% | SEC ↗ |
| Q1 2024 | May 15, 2024 | $4.47B+13% | SEC ↗ |
| Q4 2023 | Feb 13, 2024 | $3.94B+1% | SEC ↗ |
| Q3 2023 | Nov 14, 2023 | $3.92B−14% | SEC ↗ |
| Q2 2023 | Aug 11, 2023 | $4.56B−11% | SEC ↗ |
| Q1 2023 | May 15, 2023 | $5.13B−13% | SEC ↗ |
| Q4 2022 | Feb 14, 2023 | $5.91B−18% | SEC ↗ |
| Q3 2022 | Nov 14, 2022 | $7.21B−25% | SEC ↗ |
| Q2 2022 | Aug 15, 2022 | $9.67B+3% | SEC ↗ |
| Q1 2022 | May 16, 2022 | $9.37B−6% | SEC ↗ |
| Q4 2021 | Feb 14, 2022 | $9.96B+1% | SEC ↗ |
| Q3 2021 | Jan 14, 2022 (amended) | $9.82B−7% | SEC ↗ |
| Q2 2021 | Aug 6, 2021 | $10.56B+2% | SEC ↗ |
| Q1 2021 | May 14, 2021 | $10.40B+47% | SEC ↗ |
| Q4 2020 | Feb 12, 2021 | $7.08B+25% | SEC ↗ |
| Q3 2020 | Nov 16, 2020 | $5.66B+67% | SEC ↗ |
| Q2 2020 | Aug 14, 2020 | $3.39B−18% | SEC ↗ |
| Q1 2020 | May 15, 2020 | $4.15B−13% | SEC ↗ |
| Q4 2019 | Feb 13, 2020 | $4.79B+22% | SEC ↗ |
| Q3 2019 | Nov 14, 2019 | $3.93B−21% | SEC ↗ |
| Q2 2019 | Aug 14, 2019 | $5.00B+29% | SEC ↗ |
| Q1 2019 | May 15, 2019 | $3.89B−5% | SEC ↗ |
| Q4 2018 | Feb 14, 2019 | $4.08B−26% | SEC ↗ |
| Q3 2018 | Feb 14, 2019 (amended) | $5.54B−16% | SEC ↗ |
| Q2 2018 | Aug 14, 2018 (amended) | $6.56B+13% | SEC ↗ |
| Q1 2018 | May 15, 2018 (amended) | $5.80B+3% | SEC ↗ |
| Q4 2017 | Feb 14, 2018 (amended) | $5.62B+2% | SEC ↗ |
| Q3 2017 | Nov 14, 2017 (amended) | $5.52B−15% | SEC ↗ |
| Q2 2017 | Aug 14, 2017 (amended) | $6.52B−7% | SEC ↗ |
| Q1 2017 | May 15, 2017 (amended) | $7.02B+1,897% | SEC ↗ |
| Q4 2016 | Aug 14, 2017 (amended) | $351.5M−95% | SEC ↗ |
| Q3 2016 | Nov 14, 2016 (amended) | $7.03B+17% | SEC ↗ |
| Q2 2016 | Aug 15, 2016 (amended) | $6.02B−7% | SEC ↗ |
| Q1 2016 | May 16, 2016 (amended) | $6.49B | SEC ↗ |