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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
+14.12%
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
$29.3B
AUM Growth
+$3.27B
Cap. Flow
-$91M
Cap. Flow %
-0.31%
Top 10 Hldgs %
24.41%
Holding
1,872
New
83
Increased
624
Reduced
816
Closed
87

Top Buys

Rank Stock Value
1
GWRE icon
Guidewire Software
GWRE
+$37.5M
2
SCHW
Charles Schwab
SCHW
+$37.1M
3
VLTO icon
Veralto
VLTO
+$17.1M
4
VRTX icon
Vertex Pharmaceuticals
VRTX
+$16.7M
5
CSGP icon
CoStar Group
CSGP
+$16.3M

Top Sells

Rank Stock Value
1
DHR icon
Danaher
DHR
+$37.6M
2
IRTC icon
iRhythm Holdings
IRTC
+$26.7M
3
DE icon
Deere & Co
DE
+$22.6M
4
TOST icon
Toast
TOST
+$21.2M
5
KO icon
Coca-Cola
KO
+$20.3M

Sector Composition

Rank Sector Weight
1 Technology 26.35%
2 Healthcare 17.08%
3 Financials 12.09%
4 Industrials 11.7%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SMPL icon
751
Simply Good Foods
SMPL
$974M
$1.42M ﹤0.01%
35,968
-10,914
-23% -$408K
GGG icon
752
Graco
GGG
$13.3B
$1.42M ﹤0.01%
16,401
+4
+0% +$315
EWC icon
753
iShares MSCI Canada ETF
EWC
$6.53B
$1.42M ﹤0.01%
38,774
-173
-0.4% -$5.9K
AZEK
754
DELISTED
The AZEK Co
AZEK
$1.42M ﹤0.01%
37,123
+4,722
+15% +$147K
CHE icon
755
Chemed
CHE
$7.1B
$1.41M ﹤0.01%
2,412
-62
-3% -$34.7K
INSP icon
756
Inspire Medical Systems
INSP
$1.67B
$1.41M ﹤0.01%
6,915
+730
+12% +$118K
SCZ icon
757
iShares MSCI EAFE Small-Cap ETF
SCZ
$13.6B
$1.4M ﹤0.01%
22,672
-2,483
-10% -$142K
IPG
758
DELISTED
Interpublic Group of Companies
IPG
$1.4M ﹤0.01%
42,829
-8,396
-16% -$253K
HYMB icon
759
State Street SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$3.37B
$1.4M ﹤0.01%
55,140
-4,370
-7% -$106K
IXUS icon
760
iShares Core MSCI Total International Stock ETF
IXUS
$60.8B
$1.4M ﹤0.01%
21,485
+1,500
+8% +$91.8K
FDS icon
761
Factset
FDS
$9.98B
$1.39M ﹤0.01%
2,905
-2,592
-47% -$1.17M
NTNX icon
762
Nutanix
NTNX
$17.8B
$1.39M ﹤0.01%
29,043
-2,682
-8% -$109K
IEUR icon
763
iShares Core MSCI Europe ETF
IEUR
$9.15B
$1.38M ﹤0.01%
25,029
+520
+2% +$26.6K
EQR icon
764
Equity Residential
EQR
$24.7B
$1.37M ﹤0.01%
22,399
-2,991
-12% -$173K
SPLV icon
765
Invesco S&P 500 Low Volatility ETF
SPLV
$7.21B
$1.37M ﹤0.01%
21,807
-2,084
-9% -$125K
VNQI icon
766
Vanguard Global ex-US Real Estate ETF
VNQI
$3.52B
$1.37M ﹤0.01%
32,073
-8,171
-20% -$326K
EB
767
DELISTED
Eventbrite
EB
$1.36M ﹤0.01%
163,159
-39,475
-19% -$319K
TRGP icon
768
Targa Resources
TRGP
$57.7B
$1.36M ﹤0.01%
15,630
-31
-0.2% -$2.66K
OTIS icon
769
Otis Worldwide
OTIS
$27.9B
$1.36M ﹤0.01%
15,149
+654
+5% +$54.4K
CALY
770
Callaway Golf Company
CALY
$2.99B
$1.35M ﹤0.01%
94,490
+27,500
+41% +$353K
JKHY icon
771
Jack Henry & Associates
JKHY
$10.9B
$1.35M ﹤0.01%
8,258
+685
+9% +$105K
ESGU icon
772
iShares ESG Aware MSCI USA ETF
ESGU
$18.5B
$1.35M ﹤0.01%
12,861
-24
-0.2% -$2.35K
TAN icon
773
Invesco Solar ETF
TAN
$1.38B
$1.33M ﹤0.01%
24,980
-8,461
-25% -$396K
CLX icon
774
Clorox
CLX
$12.7B
$1.33M ﹤0.01%
9,342
-635
-6% -$84.7K
MTD icon
775
Mettler-Toledo International
MTD
$28.5B
$1.33M ﹤0.01%
1,098
-52
-5% -$56.2K
29 30
31
32 33

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William Blair & Company's Q4 2023 Portfolio in Review

As of Q4 2023, William Blair & Company held 1,872 positions worth $29.3B, up 13% from $26.1B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2023 filing shows 83 new, 624 increased, 816 reduced and 87 closed positions. Its largest new stake was Veralto: 229,539 shares worth $18.9M. The largest sale was Danaher, an estimated $37.6M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2023 buy was Veralto: 229,539 shares worth $18.9M.
  • William Blair & Company added most to Guidewire Software in Q4 2023, an estimated $37.5M increase.
  • William Blair & Company's biggest Q4 2023 reduction was Danaher, cutting an estimated $37.6M.
  • William Blair & Company fully exited Seagen Inc. Common Stock in Q4 2023, selling an estimated $13.8M.
  • William Blair & Company's ten largest holdings make up 24% of its $29.3B portfolio in Q4 2023.
  • William Blair & Company opened 83 new positions and closed 87 in Q4 2023.
  • William Blair & Company's portfolio value rose 13% quarter-over-quarter to $29.3B.

Based on William Blair & Company's 13F filing for Q4 2023, filed 12 Feb 2024.