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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
FRSH icon
476
Freshworks
FRSH
$3.62B
$981K 0.01%
+122,127
New +$1.13M
CNO icon
477
CNO Financial Group
CNO
$5.12B
$975K 0.01%
23,741
+18,015
+315% +$753K
ACM icon
478
Aecom
ACM
$8.99B
$970K 0.01%
11,441
-4,991
-30% -$473K
CRH icon
479
CRH
CRH
$63.5B
$969K 0.01%
+9,222
New +$1.08M
COST icon
480
Costco
COST
$420B
$962K 0.01%
965
-205
-18% -$200K
HWM icon
481
Howmet Aerospace
HWM
$105B
$943K 0.01%
+4,229
New +$986K
DKNG icon
482
DraftKings
DKNG
$13.2B
$936K 0.01%
43,282
+36,699
+557% +$994K
ATEN icon
483
A10 Networks
ATEN
$1.89B
$935K 0.01%
+40,453
New +$791K
FSUN
484
FirstSun Capital Bancorp
FSUN
$1.77B
$933K 0.01%
+25,602
New +$970K
TPB icon
485
Turning Point Brands
TPB
$1.69B
$933K 0.01%
+10,746
New +$1.2M
VSH icon
486
Vishay Intertechnology
VSH
$4.71B
$930K 0.01%
+51,683
New +$940K
Q
487
Qnity Electronics Inc
Q
$25.2B
$928K 0.01%
+8,664
New +$920K
IDXX icon
488
Idexx Laboratories
IDXX
$43.6B
$920K 0.01%
1,652
+100
+6% +$64.1K
AGCO icon
489
AGCO
AGCO
$7.85B
$916K 0.01%
7,903
+5,717
+262% +$693K
ARMK icon
490
Aramark
ARMK
$15.4B
$900K 0.01%
22,194
-29,145
-57% -$1.16M
ABNB icon
491
Airbnb
ABNB
$112B
$896K 0.01%
7,278
-2,457
-25% -$320K
NSSC icon
492
Napco Security Technologies
NSSC
$1.27B
$894K 0.01%
22,692
+7,798
+52% +$327K
MSI icon
493
Motorola Solutions
MSI
$80.3B
$893K 0.01%
2,093
-1,631
-44% -$706K
COCO icon
494
Vita Coco
COCO
$3.56B
$890K 0.01%
+18,571
New +$1.01M
SPT icon
495
Sprout Social
SPT
$691M
$890K 0.01%
156,072
+128,797
+472% +$992K
RGTI icon
496
Rigetti Computing
RGTI
$5.16B
$882K 0.01%
+62,814
New +$1.18M
DOO
497
Bombardier Recreational Products
DOO
$4.52B
$877K 0.01%
12,200
-3,162
-21% -$232K
AMBA icon
498
Ambarella
AMBA
$3.07B
$876K 0.01%
17,014
+12,980
+322% +$809K
LLY icon
499
Eli Lilly
LLY
$1.04T
$874K 0.01%
+986
New +$1,000K
BRX icon
500
Brixmor Property Group
BRX
$8.97B
$874K 0.01%
30,334
+21,213
+233% +$599K
18 19
20
21 22

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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.