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
BBY icon
1151
Best Buy
BBY
$17.6B
– –
-46,287
Closed -$3.1M
BEN icon
1152
Franklin Templeton
BEN
$17.8B
– –
-8,987
Closed -$215K
BFAM icon
1153
Bright Horizons
BFAM
$3.65B
– –
-14,490
Closed -$1.47M
BJ icon
1154
BJs Wholesale Club
BJ
$11.5B
– –
-2,551
Closed -$230K
BLMN icon
1155
Bloomin' Brands
BLMN
$915M
– –
-60,643
Closed -$374K
BNL icon
1156
Broadstone Net Lease
BNL
$4.34B
– –
-210,011
Closed -$3.65M
BR icon
1157
Broadridge
BR
$21B
– –
-1,479
Closed -$330K
BRKR icon
1158
Bruker
BRKR
$8.77B
– –
-8,669
Closed -$408K
BRO icon
1159
Brown & Brown
BRO
$24.4B
– –
-23,714
Closed -$1.89M
BSY icon
1160
Bentley Systems
BSY
$11.3B
– –
-12,383
Closed -$473K
BTE icon
1161
Baytex Energy
BTE
$3.29B
– –
-10,949
Closed -$35.4K
CABO icon
1162
Cable One
CABO
$136M
– –
-1,860
Closed -$210K
CACI icon
1163
CACI
CACI
$13.9B
– –
-489
Closed -$261K
CADE
1164
DELISTED
Cadence Bank
CADE
– –
-68,305
Closed -$2.93M
CAG icon
1165
Conagra Brands
CAG
$7.74B
– –
-166,595
Closed -$2.88M
CALM icon
1166
Cal-Maine
CALM
$3.75B
– –
-13,918
Closed -$1.11M
CASY icon
1167
Casey's General Stores
CASY
$28.1B
– –
-1,693
Closed -$936K
CAT icon
1168
Caterpillar
CAT
$373B
– –
-453
Closed -$260K
CBRE icon
1169
CBRE Group
CBRE
$43.3B
– –
-7,858
Closed -$1.26M
CBZ icon
1170
CBIZ
CBZ
$2.96B
– –
-66,761
Closed -$3.37M
CCJ icon
1171
Cameco
CCJ
$44.5B
– –
-49,266
Closed -$4.51M
CDTX
1172
DELISTED
Cidara Therapeutics
CDTX
– –
-232,537
Closed -$51.4M
CE icon
1173
Celanese
CE
$4.92B
– –
-82,673
Closed -$3.5M
CENTA icon
1174
Central Garden & Pet Co Class A
CENTA
$2.38B
– –
-13,830
Closed -$404K
CFLT
1175
DELISTED
Confluent
CFLT
– –
-2,630,482
Closed -$79.5M
45 46
47
48 49

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.