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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
-1.82%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$33.2B
AUM Growth
-$1.22B
Cap. Flow
+$11.1M
Cap. Flow %
0.03%
Top 10 Hldgs %
23.77%
Holding
1,895
New
82
Increased
626
Reduced
808
Closed
94

Top Buys

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$112M
2
AAON icon
Aaon
AAON
+$104M
3
GEV icon
GE Vernova
GEV
+$77.6M
4
QCOM icon
Qualcomm
QCOM
+$47M
5
WM icon
Waste Management
WM
+$44.3M

Top Sells

Rank Stock Value
1
INTU icon
Intuit
INTU
+$65.9M
2
POOL icon
Pool Corp
POOL
+$64.7M
3
DHR icon
Danaher
DHR
+$59.8M
4
ZTS icon
Zoetis
ZTS
+$57.9M
5
SCHW
Charles Schwab
SCHW
+$44.5M

Sector Composition

Rank Sector Weight
1 Technology 26.23%
2 Financials 14.3%
3 Healthcare 12.58%
4 Industrials 12.51%
5 Consumer Discretionary 7.94%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AOA icon
1526
iShares Core 80/20 Aggressive Allocation ETF
AOA
$3.28B
$77.3K ﹤0.01%
1,011
+69
+7% +$5.38K
ZIP icon
1527
ZipRecruiter
ZIP
$405M
$77.1K ﹤0.01%
13,093
-105
-0.8% -$700
IVOL icon
1528
Quadratic Interest Rate Volatility and Inflation Hedge ETF
IVOL
$270M
$76.4K ﹤0.01%
+4,089
New +$73.6K
VTHR icon
1529
Vanguard Russell 3000 ETF
VTHR
$4.85B
$75.3K ﹤0.01%
305
– –
DEM icon
1530
WisdomTree Emerging Markets High Dividend Fund
DEM
$3.97B
$74.8K ﹤0.01%
1,777
– –
INTS icon
1531
Intensity Therapeutics
INTS
$11.2M
$74.5K ﹤0.01%
1,512
– –
QCLN icon
1532
First Trust NASDAQ Clean Edge Green Energy Index Fund
QCLN
$632M
$74.4K ﹤0.01%
2,599
+378
+17% +$12.2K
XHB icon
1533
State Street SPDR S&P Homebuilders ETF
XHB
$1.58B
$74K ﹤0.01%
764
-300
-28% -$31.1K
GBF icon
1534
iShares Government/Credit Bond ETF
GBF
$128M
$73.9K ﹤0.01%
710
-232
-25% -$23.9K
MODD icon
1535
Modular Medical
MODD
$11.2M
$73.7K ﹤0.01%
2,253
– –
SCHC icon
1536
Schwab International Small-Cap Equity ETF
SCHC
$5.67B
$73.6K ﹤0.01%
2,052
– –
DFTX
1537
Definium Therapeutics
DFTX
$5.75B
$73.1K ﹤0.01%
+12,500
New +$89.5K
UA icon
1538
Under Armour Class C
UA
$2.2B
$73K ﹤0.01%
12,272
-25,000
-67% -$170K
JMIA
1539
Jumia Technologies
JMIA
$793M
$72.5K ﹤0.01%
33,700
+7,500
+29% +$24.3K
EWZ icon
1540
iShares MSCI Brazil ETF
EWZ
$8.57B
$69.8K ﹤0.01%
2,700
+1,000
+59% +$24.9K
LIT icon
1541
Global X Lithium & Battery Tech ETF
LIT
$1.61B
$68.7K ﹤0.01%
1,772
-2,254
-56% -$92.4K
PIE icon
1542
Invesco Dorsey Wright Emerging Markets Momentum ETF
PIE
$250M
$68.2K ﹤0.01%
3,750
+250
+7% +$4.72K
PIZ icon
1543
Invesco Dorsey Wright Developed Markets Momentum ETF
PIZ
$742M
$67.6K ﹤0.01%
1,775
-125
-7% -$4.82K
EDIV icon
1544
State Street SPDR S&P Emerging Markets Dividend ETF
EDIV
$1.22B
$66.9K ﹤0.01%
1,875
+1
+0.1% +$36
BBH icon
1545
VanEck Biotech ETF
BBH
$429M
$66.9K ﹤0.01%
425
– –
NAUG
1546
Innovator Growth-100 Power Buffer ETF - August
NAUG
$57.4M
$65.2K ﹤0.01%
2,625
– –
EWH icon
1547
iShares MSCI Hong Kong ETF
EWH
$1.21B
$65.2K ﹤0.01%
3,723
-100
-3% -$1.71K
RING icon
1548
iShares MSCI Global Gold Miners ETF
RING
$2.48B
$64.7K ﹤0.01%
1,686
+102
+6% +$3.43K
IZRL icon
1549
ARK Israel Innovative Technology ETF
IZRL
$139M
$64.1K ﹤0.01%
2,990
– –
RSPE icon
1550
Invesco ESG S&P 500 Equal Weight ETF
RSPE
$69.9M
$62.9K ﹤0.01%
2,416
– –
60 61
62
63 64

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William Blair & Company's Q1 2025 Portfolio in Review

As of Q1 2025, William Blair & Company held 1,895 positions worth $33.2B, down 3.6% from $34.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2025 filing shows 82 new, 626 increased, 808 reduced and 94 closed positions. Its largest new stake was CCC Intelligent Solutions: 320,989 shares worth $2.9M. The largest sale was Intuit, an estimated $65.9M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 28% a quarter earlier, followed by Financials and Healthcare.

  • William Blair & Company's largest Q1 2025 buy was CCC Intelligent Solutions: 320,989 shares worth $2.9M.
  • William Blair & Company added most to Meta Platforms (Facebook) in Q1 2025, an estimated $112M increase.
  • William Blair & Company's biggest Q1 2025 reduction was Intuit, cutting an estimated $65.9M.
  • William Blair & Company fully exited Smartsheet Inc. in Q1 2025, selling an estimated $3.52M.
  • William Blair & Company's ten largest holdings make up 24% of its $33.2B portfolio in Q1 2025.
  • William Blair & Company opened 82 new positions and closed 94 in Q1 2025.
  • William Blair & Company's portfolio value fell 3.6% quarter-over-quarter to $33.2B.

Based on William Blair & Company's 13F filing for Q1 2025, filed 9 May 2025.