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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
EINC icon
1751
VanEck Energy Income ETF
EINC
$79.5M
$3.8K ﹤0.01%
38
– –
LBRDA icon
1752
Liberty Broadband Class A
LBRDA
$5.07B
$3.74K ﹤0.01%
+44
New +$3.51K
VXX icon
1753
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$141M
$3.5K ﹤0.01%
68
-93
-58% -$4.31K
SBDS
1754
DELISTED
Solo Brands Inc
SBDS
$3.44K ﹤0.01%
512
-13
-2% -$398
PGJ icon
1755
Invesco Golden Dragon China ETF
PGJ
$95.1M
$3.26K ﹤0.01%
110
-44
-29% -$1.26K
XRLV
1756
DELISTED
Invesco S&P 500 ex-Rate Sensitive Low Volatility ETF
XRLV
$3.11K ﹤0.01%
55
– –
CYPH
1757
Cypherpunk Technologies Inc
CYPH
$70M
$3.05K ﹤0.01%
10,000
– –
IAK icon
1758
iShares US Insurance ETF
IAK
$534M
$3.03K ﹤0.01%
22
– –
PRN icon
1759
Invesco Dorsey Wright Industrials Momentum ETF
PRN
$445M
$3.03K ﹤0.01%
22
– –
ISCV icon
1760
iShares Morningstar Small-Cap Value ETF
ISCV
$706M
$2.96K ﹤0.01%
50
-10
-17% -$629
EWI icon
1761
iShares MSCI Italy ETF
EWI
$1.08B
$2.88K ﹤0.01%
68
– –
PEZ icon
1762
Invesco Dorsey Wright Consumer Cyclicals Momentum ETF
PEZ
$22.5M
$2.67K ﹤0.01%
31
– –
EBND icon
1763
State Street SPDR Bloomberg Emerging Markets Local Bond ETF
EBND
$2.27B
$2.5K ﹤0.01%
125
+70
+127% +$1.4K
PBP icon
1764
Invesco S&P 500 BuyWrite ETF
PBP
$364M
$2.39K ﹤0.01%
108
– –
NORW icon
1765
Global X MSCI Norway ETF
NORW
$87.7M
$2.36K ﹤0.01%
87
– –
SILJ icon
1766
Amplify Junior Silver Miners ETF
SILJ
$3.99B
$2.3K ﹤0.01%
190
– –
EDEN icon
1767
iShares MSCI Denmark ETF
EDEN
$206M
$2.18K ﹤0.01%
21
– –
EWP icon
1768
iShares MSCI Spain ETF
EWP
$2.22B
$2.06K ﹤0.01%
54
– –
IYT icon
1769
iShares US Transportation ETF
IYT
$2.27B
$2.05K ﹤0.01%
32
– –
ARGT icon
1770
Global X MSCI Argentina ETF
ARGT
$810M
$2.02K ﹤0.01%
+25
New +$2.12K
XSLV icon
1771
Invesco S&P SmallCap Low Volatility ETF
XSLV
$249M
$1.94K ﹤0.01%
42
– –
HYLS icon
1772
First Trust Exchange-Traded Fund IV First Trust Tactical High Yield ETF
HYLS
$1.64B
$1.89K ﹤0.01%
46
– –
TIPX icon
1773
State Street SPDR Bloomberg 1-10 Year TIPS ETF
TIPX
$2.04B
$1.73K ﹤0.01%
90
– –
PFFD icon
1774
Global X US Preferred ETF
PFFD
$2.17B
$1.47K ﹤0.01%
77
+1
+1% +$20
IMCB icon
1775
iShares Morningstar Mid-Cap ETF
IMCB
$1.72B
$1.41K ﹤0.01%
19
– –
69 70
71
72 73

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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.