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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
(-3.5%)
Cap. Flow
-$305M
Cap. Flow
% of AUM
-3.09%
Top 10 Holdings %
Top 10 Hldgs %
55.7%
Holding
1,493
New
604
Increased
145
Reduced
173
Closed
363
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Penumbra
PEN
|
+$85.1M |
| 2 |
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 | |
|---|---|---|---|---|---|---|
1151
Best Buy
BBY
$18B
| – | – |
-46,287
| Closed | -$3.1M |
|
1152
Franklin Resources
BEN
$16.9B
| – | – |
-8,987
| Closed | -$215K |
|
1153
Bright Horizons
BFAM
$3.99B
| – | – |
-14,490
| Closed | -$1.47M |
|
1154
BJs Wholesale Club
BJ
$11.9B
| – | – |
-2,551
| Closed | -$230K |
|
1155
Bloomin' Brands
BLMN
$680M
| – | – |
-60,643
| Closed | -$374K |
|
1156
Broadstone Net Lease
BNL
$4.29B
| – | – |
-210,011
| Closed | -$3.65M |
|
1157
Broadridge
BR
$17.2B
| – | – |
-1,479
| Closed | -$330K |
|
1158
Bruker
BRKR
$9.2B
| – | – |
-8,669
| Closed | -$408K |
|
1159
Brown & Brown
BRO
$22.9B
| – | – |
-23,714
| Closed | -$1.89M |
|
1160
Bentley Systems
BSY
$9.54B
| – | – |
-12,383
| Closed | -$473K |
|
1161
Baytex Energy
BTE
$3.08B
| – | – |
-10,949
| Closed | -$35.4K |
|
1162
Cable One
CABO
$213M
| – | – |
-1,860
| Closed | -$210K |
|
1163
CACI
CACI
$10.8B
| – | – |
-489
| Closed | -$261K |
|
|
CADE
1164
DELISTED
Cadence Bank
CADE
| – | – |
-68,305
| Closed | -$2.93M |
|
1165
Conagra Brands
CAG
$7.07B
| – | – |
-166,595
| Closed | -$2.88M |
|
1166
Cal-Maine
CALM
$4.28B
| – | – |
-13,918
| Closed | -$1.11M |
|
1167
Casey's General Stores
CASY
$31.9B
| – | – |
-1,693
| Closed | -$936K |
|
1168
Caterpillar
CAT
$409B
| – | – |
-453
| Closed | -$260K |
|
1169
CBRE Group
CBRE
$40.8B
| – | – |
-7,858
| Closed | -$1.26M |
|
1170
CBIZ
CBZ
$2.29B
| – | – |
-66,761
| Closed | -$3.37M |
|
1171
Cameco
CCJ
$38.3B
| – | – |
-49,266
| Closed | -$4.51M |
|
|
CDTX
1172
DELISTED
Cidara Therapeutics
CDTX
| – | – |
-232,537
| Closed | -$51.4M |
|
1173
Celanese
CE
$5.09B
| – | – |
-82,673
| Closed | -$3.5M |
|
1174
Central Garden & Pet Co Class A
CENTA
$2.41B
| – | – |
-13,830
| Closed | -$404K |
|
|
CFLT
1175
DELISTED
Confluent
CFLT
| – | – |
-2,630,482
| Closed | -$79.5M |
|
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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 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.