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OAM

Ostrum Asset Management Portfolio holdings

AUM $1.78B
1-Year Est. Return 27.8%
This Fund
S&P 500
This Quarter Est. Return
+0.19%
1 Year Est. Return
+27.8%
3 Year Est. Return
+75.23%
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$1.78B
AUM Growth
-$303M
Cap. Flow
-$230M
Cap. Flow %
-12.92%
Top 10 Hldgs %
33.91%
Holding
586
New
14
Increased
281
Reduced
265
Closed
24

Top Buys

Rank Stock Value
1
CMI icon
Cummins
CMI
+$37.7M
2
SHOP icon
Shopify
SHOP
+$33.6M
3
SCHW
Charles Schwab
SCHW
+$32.1M
4
ILMN icon
Illumina
ILMN
+$30M
5
HON icon
Honeywell
HON
+$28.8M

Top Sells

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$70.5M
2
MSFT icon
Microsoft
MSFT
+$51.6M
3
ORLY icon
O'Reilly Automotive
ORLY
+$31.6M
4
MPWR icon
Monolithic Power Systems
MPWR
+$28.5M
5
AMZN icon
Amazon
AMZN
+$28.5M

Sector Composition

Rank Sector Weight
1 Technology 27.21%
2 Industrials 16.02%
3 Financials 13.73%
4 Healthcare 10.82%
5 Consumer Discretionary 8.76%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HUBS icon
401
HubSpot
HUBS
$11.8B
$330K 0.02%
1,350
+20
+2% +$5.61K
IT icon
402
Gartner
IT
$9.44B
$329K 0.02%
2,079
+30
+1% +$5.52K
CHTR icon
403
Charter Communications
CHTR
$15.9B
$329K 0.02%
1,524
+826
+118% +$179K
PNC icon
404
PNC Financial Services
PNC
$99.8B
$326K 0.02%
1,566
+23
+1% +$5.01K
DKNG icon
405
DraftKings
DKNG
$12.1B
$325K 0.02%
15,052
+12,707
+542% +$344K
BIIB icon
406
Biogen
BIIB
$29.5B
$324K 0.02%
1,767
-709
-29% -$131K
GPN icon
407
Global Payments
GPN
$22.5B
$318K 0.02%
4,730
+1,840
+64% +$136K
ZION icon
408
Zions Bancorporation
ZION
$10.6B
$318K 0.02%
5,520
-29,635
-84% -$1.75M
ALNY icon
409
Alnylam Pharmaceuticals
ALNY
$36.4B
$318K 0.02%
961
+14
+1% +$4.76K
WFC icon
410
Wells Fargo
WFC
$261B
$318K 0.02%
3,993
+2,656
+199% +$228K
NTRA icon
411
Natera
NTRA
$37.6B
$316K 0.02%
1,578
+550
+54% +$118K
IEX icon
412
IDEX
IEX
$16.4B
$314K 0.02%
1,658
+24
+1% +$4.74K
APP icon
413
Applovin
APP
$143B
$313K 0.02%
786
+636
+424% +$307K
FISV
414
Fiserv Inc
FISV
$27.6B
$312K 0.02%
5,591
-6,407
-53% -$396K
NWSA icon
415
News Corp Class A
NWSA
$15.3B
$312K 0.02%
12,505
+9,418
+305% +$234K
SNAP icon
416
Snap
SNAP
$7.67B
$311K 0.02%
67,618
+63,445
+1,520% +$374K
CARR icon
417
Carrier Global
CARR
$55.6B
$311K 0.02%
5,516
-2,380
-30% -$141K
GEHC icon
418
GE HealthCare
GEHC
$28.6B
$309K 0.02%
4,346
+64
+1% +$5.05K
WAL icon
419
Western Alliance Bancorporation
WAL
$8.84B
$308K 0.02%
4,350
-6,995
-62% -$583K
EFX icon
420
Equifax
EFX
$21.4B
$308K 0.02%
1,708
+856
+100% +$170K
TMO icon
421
Thermo Fisher Scientific
TMO
$196B
$307K 0.02%
625
-4,094
-87% -$2.22M
AXON
422
Axon Enterprise
AXON
$42.5B
$305K 0.02%
718
-453
-39% -$235K
EXE
423
Expand Energy Corp
EXE
$20.8B
$304K 0.02%
2,768
+1,912
+223% +$204K
PTC icon
424
PTC
PTC
$14.4B
$303K 0.02%
2,128
+1,319
+163% +$208K
FIX icon
425
Comfort Systems
FIX
$60.3B
$302K 0.02%
219
+3
+1% +$3.81K
15 16
17
18 19

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EFS
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FIB
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BCMIO
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BFG
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KPM
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JCM
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FFS
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Ostrum Asset Management's Q1 2026 Portfolio in Review

As of Q1 2026, Ostrum Asset Management held 586 positions worth $1.78B, down 15% from $2.08B the previous quarter. Its ten largest holdings account for 34% of the portfolio.

Ostrum Asset Management withdrew a net $230M in Q1 2026, closing 24 positions and reducing 265 holdings. Its most notable exit was TopBuild, an estimated $19.4M position sold in full.

By sector, the portfolio is most concentrated in Technology at 27% of assets, down from 31% a quarter earlier, followed by Industrials and Financials.

Against the trend, Ostrum Asset Management opened a new position in Shopify worth $30.3M.

  • Ostrum Asset Management's largest Q1 2026 buy was Shopify: 255,680 shares worth $30.3M.
  • Ostrum Asset Management added most to Cummins in Q1 2026, an estimated $37.7M increase.
  • Ostrum Asset Management's biggest Q1 2026 reduction was Broadcom, cutting an estimated $70.5M.
  • Ostrum Asset Management fully exited TopBuild in Q1 2026, selling an estimated $19.4M.
  • Ostrum Asset Management's ten largest holdings make up 34% of its $1.78B portfolio in Q1 2026.
  • Ostrum Asset Management opened 14 new positions and closed 24 in Q1 2026.
  • Ostrum Asset Management's portfolio value fell 15% quarter-over-quarter to $1.78B.

Based on Ostrum Asset Management's 13F filing for Q1 2026, filed 14 May 2026.