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William Blair & Company Portfolio holdings
AUM
$38.4B
1-Year Est. Return
25.71%
This Fund
S&P 500
This Quarter
Est. Return
+3.1%
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
$34.4B
AUM Growth
+$328M
(+0.96%)
Cap. Flow
-$18.6M
Cap. Flow
% of AUM
-0.05%
Top 10 Holdings %
Top 10 Hldgs %
25.12%
Holding
1,903
New
83
Increased
650
Reduced
792
Closed
87
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
XYZ
Block Inc
XYZ
|
+$80.6M |
| 2 |
Blackrock
BLK
|
+$53.4M |
| 3 |
CWAN
Clearwater Analytics
CWAN
|
+$48.5M |
| 4 |
NVIDIA
NVDA
|
+$47.9M |
| 5 |
BWX Technologies
BWXT
|
+$47M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
DexCom
DXCM
|
+$37.7M |
| 2 |
CoStar Group
CSGP
|
+$34.5M |
| 3 |
Vertex Pharmaceuticals
VRTX
|
+$30M |
| 4 |
Booz Allen Hamilton
BAH
|
+$29.1M |
| 5 |
Idexx Laboratories
IDXX
|
+$26.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 28.35% |
| 2 | Financials | 13.43% |
| 3 | Healthcare | 12.44% |
| 4 | Industrials | 11.81% |
| 5 | Consumer Discretionary | 8.44% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1176
Skyworks Solutions
SWKS
$10.6B
| $391K | ﹤0.01% |
4,405
+555
| +14% | +$50.4K |
|
1177
SoFi Technologies
SOFI
$23.9B
| $389K | ﹤0.01% |
25,230
+7,730
| +44% | +$100K |
|
1178
Extra Space Storage
EXR
$31.4B
| $387K | ﹤0.01% |
2,588
+399
| +18% | +$65.4K |
|
1179
Western Midstream Partners
WES
$20B
| $387K | ﹤0.01% |
10,071
+82
| +0.8% | +$3.17K |
|
1180
Baker Hughes
BKR
$62.9B
| $386K | ﹤0.01% |
9,405
+1,223
| +15% | +$49.3K |
|
1181
Unum
UNM
$14.7B
| $385K | ﹤0.01% |
5,272
+1,546
| +41% | +$107K |
|
1182
Privia Health
PRVA
$2.75B
| $384K | ﹤0.01% |
19,639
+25
| +0.1% | +$495 |
|
1183
Acuity Brands
AYI
$10.8B
| $384K | ﹤0.01% |
1,313
-4
| -0.3% | -$1.25K |
|
1184
Innovator US Equity Buffer ETF October
BOCT
$290M
| $383K | ﹤0.01% |
8,857
+8,295
| +1,476% | +$358K |
|
1185
JPMorgan BetaBuilders Developed Asia Pacific-ex Japan ETF
BBAX
$6.77B
| $382K | ﹤0.01% |
7,827
+236
| +3% | +$12.2K |
|
1186
First Financial Corp
THFF
$975M
| $380K | ﹤0.01% |
+8,220
| New | +$381K |
|
1187
Vanguard Total International Bond ETF
BNDX
$83B
| $379K | ﹤0.01% |
7,724
+3,584
| +87% | +$179K |
|
1188
Invesco Large Cap Growth ETF
PWB
$2.46B
| $378K | ﹤0.01% |
3,713
| – | – |
|
1189
Keurig Dr Pepper
KDP
$42.1B
| $377K | ﹤0.01% |
11,729
+3,700
| +46% | +$125K |
|
1190
MGE Energy Inc
MGEE
$3.06B
| $376K | ﹤0.01% |
4,000
| – | – |
|
1191
Plains All American Pipeline
PAA
$16.5B
| $375K | ﹤0.01% |
21,965
| – | – |
|
1192
First Community Corp
FCCO
$324M
| $375K | ﹤0.01% |
15,620
| – | – |
|
1193
Steris
STE
$23B
| $374K | ﹤0.01% |
1,819
-1,057
| -37% | -$232K |
|
1194
CMS Energy
CMS
$22.1B
| $374K | ﹤0.01% |
5,604
-48
| -0.8% | -$3.3K |
|
1195
Fluence Energy
FLNC
$2.48B
| $373K | ﹤0.01% |
+23,500
| New | +$460K |
|
1196
Axalta
AXTA
$7.95B
| $373K | ﹤0.01% |
10,896
-5,274
| -33% | -$198K |
|
1197
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.42B
| $372K | ﹤0.01% |
13,865
+2,868
| +26% | +$89.7K |
|
1198
Haleon
HLN
$43.2B
| $372K | ﹤0.01% |
38,945
-1,254
| -3% | -$12.3K |
|
1199
State Street SPDR NYSE Technology ETF
XNTK
$2.29B
| $371K | ﹤0.01% |
1,839
| – | – |
|
|
DNB
1200
DELISTED
Dun & Bradstreet
DNB
| $370K | ﹤0.01% |
29,700
+6,461
| +28% | +$77.2K |
|
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William Blair & Company's Q4 2024 Portfolio in Review
As of Q4 2024, William Blair & Company held 1,903 positions worth $34.4B, up 0.96% from $34.1B the previous quarter. Its ten largest holdings account for 25% of the portfolio.
William Blair & Company's Q4 2024 filing shows 83 new, 650 increased, 792 reduced and 87 closed positions. Its largest new stake was Blackrock: 52,623 shares worth $53.9M. The largest sale was DexCom, an estimated $37.7M.
By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Financials and Healthcare.
- William Blair & Company's largest Q4 2024 buy was Blackrock: 52,623 shares worth $53.9M.
- William Blair & Company added most to Block Inc in Q4 2024, an estimated $80.6M increase.
- William Blair & Company's biggest Q4 2024 reduction was DexCom, cutting an estimated $37.7M.
- William Blair & Company fully exited Rush Street Interactive in Q4 2024, selling an estimated $5.79M.
- William Blair & Company's ten largest holdings make up 25% of its $34.4B portfolio in Q4 2024.
- William Blair & Company opened 83 new positions and closed 87 in Q4 2024.
- William Blair & Company's portfolio value rose 0.96% quarter-over-quarter to $34.4B.
Based on William Blair & Company's 13F filing for Q4 2024, filed 12 Feb 2025.