We are live on ! Find out more
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
SOCA
226
Solarius Capital Acquisition Corp
SOCA
$243M
$4.06M 0.04%
401,000
– –
OIM
227
OneIM Acquisition Corp
OIM
$366M
$4.01M 0.04%
+399,990
New +$4M
MACI
228
Melar Acquisition Corp I
MACI
$237M
$4.01M 0.04%
371,250
– –
DYOR
229
Insight Digital Partners II
DYOR
$233M
$3.98M 0.04%
400,000
– –
TDWD
230
Tailwind 2.0 Acquisition Corp
TDWD
$238M
$3.97M 0.04%
+400,000
New +$3.96M
TWLV
231
Twelve Seas Investment Co III
TWLV
$236M
$3.96M 0.04%
+400,000
New +$3.96M
BEBE
232
TGE Value Creative Solutions Corp
BEBE
$200M
$3.95M 0.04%
+400,000
New +$3.96M
AGO icon
233
Assured Guaranty
AGO
$3.34B
$3.95M 0.04%
48,431
+41,712
+621% +$3.56M
PAII
234
Pyrophyte Acquisition Corp II
PAII
$280M
$3.81M 0.04%
375,830
– –
FMACU
235
Future Money Acquisition Corp Units
FMACU
$3.74M 0.04%
+375,000
New +$3.75M
GIX
236
GigCapital9 Corp
GIX
$365M
$3.68M 0.04%
+375,000
New +$3.68M
NKLR
237
Terra Innovatum Global N.V.
NKLR
$664M
$3.59M 0.04%
779,733
-99,870
-11% -$489K
TVAI
238
Thayer Ventures Acquisition Corporation II
TVAI
$282M
$3.57M 0.04%
350,000
– –
CGNX icon
239
Cognex
CGNX
$10.6B
$3.44M 0.03%
70,149
+64,086
+1,057% +$2.99M
TMHC
240
DELISTED
Taylor Morrison
TMHC
$3.36M 0.03%
57,665
-13,757
-19% -$860K
MDB icon
241
MongoDB
MDB
$35.4B
$3.29M 0.03%
13,442
+2,758
+26% +$923K
ONTO icon
242
Onto Innovation
ONTO
$17.9B
$3.28M 0.03%
+16,012
New +$3.28M
DSGX icon
243
Descartes Systems
DSGX
$6.91B
$3.25M 0.03%
45,418
-21,529
-32% -$1.59M
ROST icon
244
Ross Stores
ROST
$73.7B
$3.24M 0.03%
15,521
+500
+3% +$99.6K
CEPT
245
DELISTED
Cantor Equity Partners II
CEPT
$3.16M 0.03%
290,000
-170,000
-37% -$1.95M
DHR icon
246
Danaher
DHR
$152B
$3.11M 0.03%
16,926
+9,281
+121% +$1.98M
AIT icon
247
Applied Industrial Technologies
AIT
$12.4B
$3.1M 0.03%
11,679
+2,394
+26% +$652K
RTAC
248
Renatus Tactical Acquisition Corp I
RTAC
$327M
$3.08M 0.03%
300,000
– –
CCII
249
Cohen Circle Acquisition Corp II
CCII
$358M
$3.07M 0.03%
300,000
– –
SPEG
250
Silver Pegasus Acquisition Corp
SPEG
$159M
$3.05M 0.03%
300,000
– –
8 9
10
11 12

Similar funds

BEI
Benjamin Edwards Inc Clayton, Missouri $11B AUM 18.22% 1-Year Est. Return
LCAM
London & Capital Asset Management London, United Kingdom $10.9B AUM 39.88% 1-Year Est. Return
IIM
INTECH Investment Management West Palm Beach, Florida $10.9B AUM 37.22% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
MPI
Mairs & Power Inc St Paul, Minnesota $10.9B AUM 27.5% 1-Year Est. Return
RCMF
RK Capital Management (Florida) Weston, Florida $10.8B AUM 53.02% 1-Year Est. Return
SIM
SRS Investment Management New York $10.8B AUM 34.05% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 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'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.