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MF

Magnetar Financial Portfolio holdings

AUM $11B
1-Year Est. Return 3.37%
This Fund
S&P 500
This Quarter Est. Return
+7.2%
1 Year Est. Return
-3.37%
3 Year Est. Return
+334.16%
5 Year Est. Return
+550.58%
10 Year Est. Return
+5,328.36%
AUM
$9.84B
AUM Growth
-$362M
Cap. Flow
-$294M
Cap. Flow %
-2.99%
Top 10 Hldgs %
55.7%
Holding
1,493
New
604
Increased
145
Reduced
173
Closed
363

Top Buys

Rank Stock Value
1
PEN icon
Penumbra
PEN
+$85.1M
2
WBS
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 Miscellaneous 8.46%
4 Industrials 4.76%
5 Healthcare 4.19%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CP icon
426
Canadian Pacific Kansas City
CP
$82.2B
$1.22M 0.01%
15,454
-389
-2% -$30.7K
MSA icon
427
Mine Safety
MSA
$7.31B
$1.21M 0.01%
+7,390
New +$1.35M
STN icon
428
Stantec
STN
$8.44B
$1.21M 0.01%
13,997
+3,196
+30% +$301K
ES icon
429
Eversource Energy
ES
$26.7B
$1.18M 0.01%
17,289
-9,191
-35% -$650K
EXTR icon
430
Extreme Networks
EXTR
$2.92B
$1.18M 0.01%
78,075
+54,277
+228% +$810K
ROG icon
431
Rogers Corp
ROG
$2.27B
$1.18M 0.01%
+10,958
New +$1.13M
DECK icon
432
Deckers Outdoor
DECK
$11.9B
$1.17M 0.01%
+12,366
New +$1.33M
IBOC icon
433
International Bancshares
IBOC
$4.4B
$1.17M 0.01%
+17,380
New +$1.2M
DB icon
434
Deutsche Bank
DB
$75.9B
$1.16M 0.01%
+39,038
New +$1.38M
APPN icon
435
Appian
APPN
$3.02B
$1.16M 0.01%
48,071
+21,501
+81% +$584K
ENB icon
436
Enbridge
ENB
$109B
$1.15M 0.01%
+21,281
New +$1.08M
IONQ icon
437
IonQ
IONQ
$15.8B
$1.15M 0.01%
+39,900
New +$1.53M
CTS icon
438
CTS Corp
CTS
$1.63B
$1.15M 0.01%
+24,067
New +$1.21M
LIN icon
439
Linde
LIN
$225B
$1.14M 0.01%
2,293
-7,637
-77% -$3.6M
CCEP icon
440
Coca-Cola Europacific Partners
CCEP
$47.9B
$1.14M 0.01%
+12,615
New +$1.21M
AMG icon
441
Affiliated Managers Group
AMG
$9.63B
$1.14M 0.01%
4,110
+3,198
+351% +$964K
PODD icon
442
Insulet
PODD
$10.1B
$1.14M 0.01%
5,458
-2,004
-27% -$504K
SDRL icon
443
Seadrill
SDRL
$3B
$1.13M 0.01%
+24,853
New +$1.01M
FSLR icon
444
First Solar
FSLR
$21.9B
$1.12M 0.01%
6,063
-4,054
-40% -$897K
FTDR icon
445
Frontdoor
FTDR
$5.67B
$1.11M 0.01%
+21,070
New +$1.26M
AVNT icon
446
Avient
AVNT
$4.07B
$1.11M 0.01%
+30,638
New +$1.14M
DAN icon
447
Dana Inc
DAN
$3.27B
$1.1M 0.01%
+34,639
New +$1.08M
QTWO icon
448
Q2 Holdings
QTWO
$4.1B
$1.1M 0.01%
+23,253
New +$1.31M
OHI icon
449
Omega Healthcare
OHI
$14B
$1.1M 0.01%
+25,026
New +$1.14M
CHDN icon
450
Churchill Downs
CHDN
$6.14B
$1.09M 0.01%
+12,164
New +$1.16M
16 17
18
19 20

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LCAM
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IIM
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RCMNY
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MPI
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ACA
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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's Q1 2026 filing shows 604 new, 145 increased, 173 reduced and 363 closed positions. Its largest new stake was Penumbra: 251,433 shares worth $82.6M. The largest sale was Comerica, an estimated $99.1M.

By sector, the portfolio is most concentrated in Technology at 53% of assets, down from 54% a quarter earlier, followed by Financials and Miscellaneous.

  • 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.