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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
DSAC
201
Daedalus Special Acquisition Corp
DSAC
$346M
$5.95M 0.06%
+600,000
New +$5.97M
COPL
202
Copley Acquisition Corp
COPL
$248M
$5.64M 0.06%
547,400
– –
SBXD
203
SilverBox Corp IV
SBXD
$276M
$5.58M 0.06%
520,823
– –
HAVA
204
Harvard Ave Acquisition Corp
HAVA
$210M
$5.5M 0.06%
+550,000
New +$5.49M
TRGSU
205
TRG Latin America Acquisitions Corp Units
TRGSU
$5.47M 0.06%
+550,000
New +$5.49M
BHAVU
206
BHAV Acquisition Corp Units
BHAVU
$101M
$5.44M 0.06%
+545,600
New +$5.44M
KPET.U
207
KPET Ultra Paceline Corp Units
KPET.U
$5.3M 0.05%
+529,819
New +$5.3M
PLMK
208
Plum Acquisition Corp IV
PLMK
$257M
$5.28M 0.05%
500,000
– –
CAEP
209
DELISTED
Cantor Equity Partners III
CAEP
$5.16M 0.05%
500,000
– –
FIGX
210
FIGX Capital Acquisition Corp
FIGX
$199M
$5.05M 0.05%
500,000
– –
CEPV
211
Cantor Equity Partners V
CEPV
$332M
$5.05M 0.05%
500,000
– –
SAC
212
Safeguard Acquisition Corp
SAC
$4.99M 0.05%
+500,000
New +$4.99M
LKSP
213
Lake Superior Acquisition Corp
LKSP
$160M
$4.98M 0.05%
+495,187
New +$4.95M
HCAC
214
Hall Chadwick Acquisition Corp
HCAC
$294M
$4.96M 0.05%
+500,000
New +$4.99M
NATH icon
215
Nathan's Famous
NATH
$402M
$4.95M 0.05%
+49,107
New +$4.87M
BCAR
216
D. Boral ARC Acquisition I Corp
BCAR
$426M
$4.81M 0.05%
475,000
– –
BCSS
217
Bain Capital GSS Investment Corp
BCSS
$597M
$4.54M 0.05%
450,000
– –
TRAD.U
218
APEX Tech Acquisition Inc Units
TRAD.U
$4.5M 0.05%
+450,000
New +$4.5M
NEE.PRS
219
NextEra Energy 7.299% Corporate Units
NEE.PRS
$2.18B
$4.36M 0.04%
77,250
-272,750
-78% -$15.1M
DOCU
220
DocuSign
DOCU
$9.63B
$4.33M 0.04%
+91,251
New +$4.67M
PCG.PRX
221
PG&E Corp 6.000% Series A Preferred Stock
PCG.PRX
$1.4B
$4.32M 0.04%
+100,000
New +$4.25M
LAFA
222
LaFayette Acquisition Corp
LAFA
$4.25M 0.04%
+425,000
New +$4.24M
BEAG
223
Bold Eagle Acquisition Corp
BEAG
$4.23M 0.04%
400,000
– –
WPAC.U
224
White Pearl Acquisition Corp Units
WPAC.U
$4.08M 0.04%
+400,000
New +$4.02M
CLBR.U
225
Colombier Acquisition Corp III Units
CLBR.U
$4.07M 0.04%
+400,000
New +$4.07M
7 8
9
10 11

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HI
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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.