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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 | |
|---|---|---|---|---|---|---|
801
First Trust Dow Jones Internet Index Fund ETF
FDN
$5.45B
| $1.42M | ﹤0.01% |
5,845
-42
| -0.7% | -$9.81K |
|
802
Vanguard Total International Stock ETF
VXUS
$164B
| $1.41M | ﹤0.01% |
23,969
-283
| -1% | -$17.5K |
|
803
M&T Bank
MTB
$36.6B
| $1.41M | ﹤0.01% |
7,491
+269
| +4% | +$53.5K |
|
804
iShares Core MSCI Total International Stock ETF
IXUS
$60.8B
| $1.4M | ﹤0.01% |
21,146
+383
| +2% | +$26.6K |
|
805
Morningstar
MORN
$7.76B
| $1.4M | ﹤0.01% |
4,145
-50
| -1% | -$17.1K |
|
806
Ionis Pharmaceuticals
IONS
$9.28B
| $1.39M | ﹤0.01% |
39,882
-6,769
| -15% | -$253K |
|
807
Similarweb
SMWB
$789M
| $1.39M | ﹤0.01% |
97,853
+72,674
| +289% | +$803K |
|
808
Hain Celestial
HAIN
$53.9M
| $1.38M | ﹤0.01% |
223,958
-82,176
| -27% | -$657K |
|
809
Darden Restaurants
DRI
$25.4B
| $1.37M | ﹤0.01% |
7,341
-196
| -3% | -$32.9K |
|
810
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.8B
| $1.36M | ﹤0.01% |
12,768
-23,415
| -65% | -$2.56M |
|
811
iShares 20+ Year Treasury Bond ETF
TLT
$40.8B
| $1.35M | ﹤0.01% |
15,448
+1,852
| +14% | +$170K |
|
|
CCRN
812
DELISTED
Cross Country Healthcare
CCRN
| $1.34M | ﹤0.01% |
73,774
-20
| -0% | -$269 |
|
813
Jefferies Financial Group
JEF
$12.9B
| $1.34M | ﹤0.01% |
17,040
| – | – |
|
814
Invesco S&P 500 Equal Weight Technology ETF
RSPT
$6.05B
| $1.31M | ﹤0.01% |
34,988
-58
| -0.2% | -$2.21K |
|
815
Innovator US Equity Buffer ETF July
BJUL
$355M
| $1.31M | ﹤0.01% |
29,341
| – | – |
|
816
Carlyle Group
CG
$18.3B
| $1.31M | ﹤0.01% |
25,880
-18,552
| -42% | -$940K |
|
|
K
817
DELISTED
Kellanova
K
| $1.3M | ﹤0.01% |
16,026
+109
| +0.7% | +$8.81K |
|
818
MGM Resorts International
MGM
$11.1B
| $1.3M | ﹤0.01% |
37,397
-4,274
| -10% | -$162K |
|
819
FlexShares Quality Dividend Defensive Index Fund
QDEF
$564M
| $1.29M | ﹤0.01% |
18,364
+86
| +0.5% | +$6.19K |
|
820
First Solar
FSLR
$24B
| $1.29M | ﹤0.01% |
7,302
+1,467
| +25% | +$292K |
|
821
LegalZoom.com
LZ
$993M
| $1.28M | ﹤0.01% |
170,096
-436,688
| -72% | -$3.29M |
|
822
JPMorgan BetaBuilders Europe ETF
BBEU
$9.53B
| $1.27M | ﹤0.01% |
22,985
-189
| -0.8% | -$11.1K |
|
823
Agnico Eagle Mines
AEM
$91.3B
| $1.27M | ﹤0.01% |
16,180
-100
| -0.6% | -$8.24K |
|
824
Delta Air Lines
DAL
$60B
| $1.26M | ﹤0.01% |
20,850
+1,068
| +5% | +$63.1K |
|
825
Yum China
YUMC
$16.2B
| $1.25M | ﹤0.01% |
25,997
+3,491
| +16% | +$166K |
|
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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.