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MF
Magnetar Financial Portfolio holdings
AUM
$9.84B
1-Year Est. Return
190.64%
This Fund
S&P 500
This Quarter
Est. Return
+7.2%
1 Year Est. Return
+190.64%
3 Year Est. Return
+293.18%
5 Year Est. Return
+491.79%
10 Year Est. Return
+5,174.28%
AUM
$9.84B
AUM Growth
-$362M
(-3.5%)
Cap. Flow
-$305M
Cap. Flow
% of AUM
-3.09%
Top 10 Holdings %
Top 10 Hldgs %
55.7%
Holding
1,493
New
604
Increased
145
Reduced
173
Closed
363
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Penumbra
PEN
|
+$85.1M |
| 2 |
Webster Financial
WBS
|
+$77.3M |
| 3 |
AAUC
Allied Gold Corp
AAUC
|
+$76.1M |
| 4 |
MASI
Masimo
MASI
|
+$66.2M |
| 5 |
MCHPP
Microchip Technology Inc 7.50% Series A Preferred Stock
MCHPP
|
+$65.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
CMA
Comerica
CMA
|
+$99.1M |
| 2 |
REVG
REV Group
REVG
|
+$97.8M |
| 3 |
FYBR
Frontier Communications
FYBR
|
+$89.2M |
| 4 |
CYBR
CyberArk
CYBR
|
+$89M |
| 5 |
TGNA
TEGNA Inc
TGNA
|
+$84.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 53.03% |
| 2 | Financials | 19.67% |
| 3 | Industrials | 4.76% |
| 4 | Healthcare | 4.19% |
| 5 | Materials | 2.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
526
Commault Systems
CVLT
$5.89B
| $749K | 0.01% |
+9,613
| New | +$912K |
|
527
Lam Research
LRCX
$382B
| $747K | 0.01% |
3,735
+160
| +4% | +$35.8K |
|
528
Arcos Dorados Holdings
ARCO
$1.73B
| $745K | 0.01% |
+90,332
| New | +$733K |
|
529
Vertex Pharmaceuticals
VRTX
$121B
| $741K | 0.01% |
+1,672
| New | +$780K |
|
530
Pentair
PNR
$10.2B
| $741K | 0.01% |
8,822
-2,291
| -21% | -$224K |
|
531
MasterCraft Boat Holdings
MCFT
$588M
| $740K | 0.01% |
+36,086
| New | +$782K |
|
532
SiteOne Landscape Supply
SITE
$4.43B
| $738K | 0.01% |
5,548
-23,750
| -81% | -$3.36M |
|
533
Ferguson
FERG
$44.7B
| $738K | 0.01% |
3,163
-18,204
| -85% | -$4.43M |
|
534
Global Payments
GPN
$22.1B
| $734K | 0.01% |
+11,073
| New | +$817K |
|
535
Canadian National Railway
CNI
$78.3B
| $732K | 0.01% |
7,119
-38,635
| -84% | -$3.98M |
|
536
Monarch Casino & Resort
MCRI
$2.14B
| $722K | 0.01% |
7,552
+2,047
| +37% | +$195K |
|
537
Tactile Systems Technology
TCMD
$620M
| $721K | 0.01% |
+27,594
| New | +$787K |
|
|
CCRN
538
DELISTED
Cross Country Healthcare
CCRN
| $721K | 0.01% |
76,689
-431,098
| -85% | -$3.86M |
|
539
Kennametal
KMT
$2.68B
| $721K | 0.01% |
+19,943
| New | +$727K |
|
540
ACM Research
ACMR
$5.83B
| $720K | 0.01% |
+18,303
| New | +$972K |
|
541
Varonis Systems
VRNS
$5.25B
| $715K | 0.01% |
+33,301
| New | +$903K |
|
542
Clear Secure
YOU
$5.26B
| $712K | 0.01% |
+14,711
| New | +$586K |
|
543
Ally Financial
ALLY
$13.1B
| $707K | 0.01% |
18,022
-9,216
| -34% | -$379K |
|
544
Boston Beer
SAM
$1.88B
| $704K | 0.01% |
3,055
+1,920
| +169% | +$432K |
|
545
VSE Corp
VSEC
$5.48B
| $703K | 0.01% |
+3,813
| New | +$776K |
|
546
HNI Corp
HNI
$3B
| $702K | 0.01% |
21,036
-41,409
| -66% | -$1.83M |
|
547
Radware
RDWR
$1.24B
| $701K | 0.01% |
26,626
-8,426
| -24% | -$210K |
|
548
KeyCorp
KEY
$24.3B
| $696K | 0.01% |
+35,900
| New | +$752K |
|
549
Republic Bancorp
RBCAA
$1.84B
| $695K | 0.01% |
+9,847
| New | +$695K |
|
550
International Seaways
INSW
$4.57B
| $693K | 0.01% |
+9,507
| New | +$608K |
|
Similar funds
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URS
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CCM
OAM
FCM
HL
Magnetar Financial's Q1 2026 Portfolio in Review
As of Q1 2026, Magnetar Financial held 1,493 positions worth $9.84B, down 3.5% from $10.2B the previous quarter. Its ten largest holdings account for 56% of the portfolio.
Magnetar Financial withdrew a net $305M in Q1 2026, closing 363 positions and reducing 173 holdings. Its most notable exit was Comerica, an estimated $99.1M position sold in full.
By sector, the portfolio is most concentrated in Technology at 53% of assets, down from 54% a quarter earlier, followed by Financials and Industrials.
Against the trend, Magnetar Financial opened a new position in Penumbra worth $82.6M.
- Magnetar Financial's largest Q1 2026 buy was Penumbra: 251,433 shares worth $82.6M.
- Magnetar Financial added most to Webster Financial in Q1 2026, an estimated $77.3M increase.
- Magnetar Financial's biggest Q1 2026 reduction was Shift4 Payments Inc 6.00% Series A Preferred Stock, cutting an estimated $37.3M.
- Magnetar Financial fully exited Comerica in Q1 2026, selling an estimated $99.1M.
- Magnetar Financial's ten largest holdings make up 56% of its $9.84B portfolio in Q1 2026.
- Magnetar Financial opened 604 new positions and closed 363 in Q1 2026.
- Magnetar Financial's portfolio value fell 3.5% quarter-over-quarter to $9.84B.
Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.