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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
Cap. Flow
-$305M
Cap. Flow %
-3.09%
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 icon
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
ALDF
51
Aldel Financial II Inc
ALDF
$321M
$20.1M 0.2%
1,899,098
– –
ALF
52
Centurion Acquisition Corp
ALF
$20M 0.2%
1,856,250
– –
MLAC
53
DELISTED
Mountain Lake Acquisition Corp
MLAC
$20M 0.2%
1,900,000
– –
MLAA
54
Mountain Lake Acquisition Corp II
MLAA
$19.7M 0.2%
+2,000,000
New +$19.7M
KCHV
55
Kochav Defense Acquisition Corp
KCHV
$356M
$19.5M 0.2%
1,900,000
– –
AACOU
56
Abony Acquisition Corp I Units
AACOU
$19.4M 0.2%
+1,950,000
New +$19.4M
VNME
57
Vendome Acquisition Corp I
VNME
$18.7M 0.19%
1,850,000
– –
ILLUU
58
Illumination Acquisition Corp I Units
ILLUU
$18.4M 0.19%
+1,850,000
New +$18.4M
LOKV
59
DELISTED
Live Oak Acquisition Corp V
LOKV
$18.2M 0.18%
1,750,000
– –
WHLRL
60
Wheeler Real Estate Investment Trust 7.00% Senior Subordinated Convertible Notes Due 2031
WHLRL
$18.1M 0.18%
190,823
– –
SDHI
61
Siddhi Acquisition Corp
SDHI
$364M
$18.1M 0.18%
1,750,000
– –
SZZL
62
Sizzle Acquisition Corp II
SZZL
$325M
$18M 0.18%
1,750,000
– –
ALB.PRA icon
63
Albemarle Corp Depositary Shares
ALB.PRA
$2.24B
$18M 0.18%
250,000
– –
SOUL
64
Soulpower Acquisition Corp
SOUL
$353M
$17.9M 0.18%
1,750,000
– –
NPAC
65
New Providence Acquisition Corp III
NPAC
$399M
$17.9M 0.18%
1,749,990
– –
ZKP
66
Lafayette Digital Acquisition Corp I
ZKP
$390M
$17.9M 0.18%
+1,800,000
New +$17.8M
DBCAU
67
D. Boral Acquisition I Corp Unit
DBCAU
$258M
$17.7M 0.18%
+1,750,000
New +$17.5M
CVGW
68
DELISTED
Calavo Growers
CVGW
$17.3M 0.18%
+671,272
New +$16.8M
GRAF
69
Graf Global Corp
GRAF
$153M
$17.3M 0.18%
1,613,354
– –
SORN
70
Soren Acquisition Corp
SORN
$346M
$17.2M 0.17%
+1,749,993
New +$17.3M
CAQUU
71
Cambridge Acquisition Corp
CAQUU
$205M
$16.9M 0.17%
+1,700,000
New +$16.9M
TACO
72
Berto Acquisition Corp
TACO
$393M
$16.9M 0.17%
1,650,000
– –
ZIM icon
73
ZIM Integrated Shipping Services
ZIM
$3B
$15.7M 0.16%
+595,256
New +$14.8M
KCAC.U
74
Kensington Capital Acquisition Corp VI Units
KCAC.U
$15.6M 0.16%
+1,549,399
New +$15.5M
FERA
75
Fifth Era Acquisition Corp I
FERA
$326M
$15.4M 0.16%
1,500,000
– –
1 2
3
4 5

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HI
HBK Investments Dallas, Texas $9.85B AUM 55.6% 1-Year Est. Return
MPI
Mairs & Power Inc St Paul, Minnesota $9.79B AUM 20.6% 1-Year Est. Return
URS
Utah Retirement Systems Salt Lake City, Utah $9.78B AUM 28.72% 1-Year Est. Return
FPAS
Focus Partners Advisor Solutions Saint Louis, Missouri $9.92B AUM 21.52% 1-Year Est. Return
CCM
Cullen Capital Management New York $9.75B AUM 21.81% 1-Year Est. Return
OAM
OP Asset Management Helsinki $9.95B AUM 30.22% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return
HL
Harding Loevner Bridgewater, New Jersey $9.72B AUM 22.38% 1-Year Est. Return

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.