13F filer · CIK 1352851 ↗
Magnetar Financial LLC
You are looking at Q3 2018. See the latest, Q2 2026 →
Reported value
$5.54B
−16% on the quarter before
Positions
490
315 new · 310 sold out
Top 10
46.6%
of the value
Est. gain
+$126.1M
on stocks held all quarter
Est. return
+3.7%
on those stocks since Q2 2018
Positions as of Sep 30, 2018, 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
Each tile is a position, sized by its share, colored by what the fund did with it since Q2 2018. Striped tiles are options.
Largest buys
Since Q2 2018, 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.
- Energen Corp~$258.0MNew · 0.0% → 4.7%+2,993,513 shares
- Ca Inc~$242.3MNew · 0.0% → 4.4%+5,488,741 shares
- Integrated Device Technology~$238.0MNew · 0.0% → 4.3%+5,061,723 shares
- Supervalu Inc~$80.2MNew · 0.0% → 1.4%+2,489,194 shares
- Pinnacle Foods Inc Del~$58.5MAdded · 2.7% → 4.2%+902,920 shares
- Churchill Cap Corp~$55.8MNew · 0.0% → 1.0%+5,500,000 shares
- Nevsun Res Ltd~$55.4MNew · 0.0% → 1.0%+12,491,400 shares
- Bemis Inc~$51.2MNew · 0.0% → 0.9%+1,052,714 shares
- Convergys Corp~$47.8MAdded · 0.1% → 1.0%+2,014,350 shares
- Lasalle Hotel Pptys~$41.6MNew · 0.0% → 0.8%+1,204,086 shares
Largest sells
Since Q2 2018, 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.
- Nxp Semiconductors N V~$337.0MSold out · 5.1% → 0.0%−3,084,030 shares
- Cavium Inc~$243.6MSold out · 3.7% → 0.0%−2,816,631 shares
- Andeavor~$241.7MSold out · 3.7% → 0.0%−1,842,762 shares
- Rsp Permian Inc~$219.1MSold out · 3.3% → 0.0%−4,978,144 shares
- Xl Group Ltd~$212.4MSold out · 3.2% → 0.0%−3,797,023 shares
- Validus Holdings Ltd~$198.1MSold out · 3.0% → 0.0%−2,930,210 shares
- Wgl Hldgs Inc~$195.6MSold out · 3.0% → 0.0%−2,203,827 shares
- Ilg Inc~$147.0MSold out · 2.2% → 0.0%−4,451,889 shares
- Dct Industrial Trust Inc~$143.6MSold out · 2.2% → 0.0%−2,152,156 shares
- Tribune Media Co~$136.3MSold out · 2.1% → 0.0%−3,561,021 shares
Holdings
As of Sep 30, 2018. Changes are in shares against Jun 30, 2018, so a price move alone never reads as a buy or a sale.
| Holding | Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aetna Inc NewCOM · shares −6.8% · price +10.5% | 6.0% | $332.6M | +$31.7M | ||||||||
| Rockwell Collins IncCOM · shares −3.3% · price +4.3% | 6.0% | $330.1M | +$13.6M | ||||||||
| Express Scripts Hldg CoCOM · shares −9.5% · price +23.1% | 5.7% | $314.7M | +$59.0M | ||||||||
| Energen CorpCOM · shares New | 4.7% | $258.0M | — | ||||||||
| Ca IncCOM · shares New | 4.4% | $242.3M | — | ||||||||
| Integrated Device TechnologyCOM · shares New | 4.3% | $238.0M | — | ||||||||
| Pinnacle Foods Inc DelCOM · shares +33% · price −0.4% | 4.2% | $233.2M | −$674,139 | ||||||||
| Gramercy Ppty TrCOM NEW · shares +9.2% · price +0.4% | 4.0% | $223.9M | +$896,625 | ||||||||
| Shire PlcSPONSORED ADR · shares +9.8% · price +7.4% | 3.9% | $218.8M | +$13.7M | ||||||||
| Vectren CorpCOM · shares +11% · price +0.1% | 3.4% | $191.0M | +$96,169 | ||||||||
| Sprint CorpCOM SER 1 · shares +9.3% · price +20.2% | 3.2% | $178.3M | +$27.4M | ||||||||
| U S G CorpCOM NEW · shares +7.7% · price +0.4% | 2.9% | $162.7M | +$663,278 | ||||||||
| Avista CorpCOM · shares +6.1% · price −4.0% | 2.9% | $160.2M | −$6.3M | ||||||||
| Kapstone Paper & Packaging CCOM · shares +9.3% · price −1.7% | 2.7% | $150.9M | −$2.4M | ||||||||
| Scana Corp NewCOM · shares +2.9% · price +1.0% | 2.7% | $146.9M | +$1.4M | ||||||||
| Transcanada CorpCOM · shares +3.4% · price −6.3% | 2.0% | $111.0M | −$7.3M | ||||||||
| AMDNOTE 2.125% 9/0 · shares −30% · price +95.1% | 1.9% | $102.6M | — | ||||||||
| Nxstage Medical IncCOM · shares +2.9% · price −0.0% | 1.6% | $88.1M | −$30,721 | ||||||||
| Enbridge IncCOM · shares −2.5% · price −9.5% | 1.5% | $82.1M | −$8.6M | ||||||||
| Supervalu IncCOM NEW · shares New | 1.4% | $80.2M | — | ||||||||
| Oclaro IncCOM NEW · shares +9.1% · price +0.1% | 1.4% | $75.9M | +$77,860 | ||||||||
| Williams CompaniesCOM · shares −15% · price +0.3% | 1.3% | $71.0M | +$208,366 | ||||||||
| Mb Financial Inc NewCOM · shares +1.8% · price −1.3% | 1.2% | $68.6M | −$862,592 | ||||||||
| Royal Dutch Shell PlcSPON ADR B · shares +4.2% · price −2.4% | 1.2% | $67.4M | −$1.6M | ||||||||
| Pioneer Nat Res CoCOM · shares +11% · price −8.0% | 1.1% | $61.6M | −$4.8M | ||||||||
| Total · 490 positions | 100% | $5.54B | +$126.1M |
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 2018 to Q3 2018: 165 stocks held throughout, up $126.1M (+3.7%).
- Express Scripts Hldg Co+$59.0M+23%
- Aetna Inc New+$31.7M+11%
- Sprint Corp+$27.4M+20%
- Shire Plc+$13.7M+7%
- Rockwell Collins Inc+$13.6M+4%
- Western Gas Partners Lp−$4.5M−10%
- Pioneer Nat Res Co−$4.8M−8%
- Avista Corp−$6.3M−4%
- Transcanada Corp−$7.3M−6%
- Enbridge Inc−$8.6M−10%
Estimated as in the holdings table: shares held at both quarter ends times the change in price; options left out.
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 ↗ |