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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 | |
|---|---|---|---|---|---|---|
851
American International
AIG
$39.8B
| $1.17M | ﹤0.01% |
16,097
+1,453
| +10% | +$109K |
|
852
Krystal Biotech
KRYS
$9.72B
| $1.17M | ﹤0.01% |
7,443
+1,875
| +34% | +$333K |
|
853
RE/MAX Holdings
RMAX
$265M
| $1.16M | ﹤0.01% |
108,881
-230
| -0.2% | -$2.76K |
|
854
NXP Semiconductors
NXPI
$58.5B
| $1.16M | ﹤0.01% |
5,558
-875
| -14% | -$199K |
|
855
Las Vegas Sands
LVS
$29.6B
| $1.15M | ﹤0.01% |
22,474
-8,653
| -28% | -$449K |
|
856
EnerSys
ENS
$7.2B
| $1.15M | ﹤0.01% |
12,488
+205
| +2% | +$20K |
|
857
iShares S&P Small-Cap 600 Value ETF
IJS
$8.43B
| $1.15M | ﹤0.01% |
10,618
+41
| +0.4% | +$4.54K |
|
858
Alliant Energy
LNT
$18.2B
| $1.15M | ﹤0.01% |
19,479
+787
| +4% | +$47.6K |
|
|
FFIC
859
DELISTED
Flushing Financial
FFIC
| $1.14M | ﹤0.01% |
80,170
| – | – |
|
860
Western Digital
WDC
$168B
| $1.14M | ﹤0.01% |
25,301
+312
| +1% | +$15.7K |
|
861
Goldman Sachs ActiveBeta International Equity ETF
GSIE
$6.16B
| $1.14M | ﹤0.01% |
34,120
-8,343
| -20% | -$289K |
|
862
Oshkosh
OSK
$9.41B
| $1.14M | ﹤0.01% |
11,954
-666
| -5% | -$69.7K |
|
863
Factset
FDS
$10.2B
| $1.13M | ﹤0.01% |
2,358
+46
| +2% | +$21.9K |
|
864
State Street SPDR Portfolio Developed World ex-US ETF
SPDW
$42B
| $1.13M | ﹤0.01% |
33,113
+654
| +2% | +$23.4K |
|
865
IQVIA
IQV
$39.8B
| $1.13M | ﹤0.01% |
5,742
+1,699
| +42% | +$358K |
|
866
First Trust NASDAQ-100 Technology Index Fund
QTEC
$4.92B
| $1.13M | ﹤0.01% |
5,986
| – | – |
|
867
UFP Industries
UFPI
$5.03B
| $1.12M | ﹤0.01% |
9,977
| – | – |
|
868
Entegris
ENTG
$25B
| $1.12M | ﹤0.01% |
11,275
-83
| -0.7% | -$8.75K |
|
869
QuidelOrtho
QDEL
$1.03B
| $1.11M | ﹤0.01% |
24,937
-20,677
| -45% | -$846K |
|
870
Celsius Holdings
CELH
$7.28B
| $1.11M | ﹤0.01% |
42,099
+8,398
| +25% | +$249K |
|
871
Brookfield Infrastructure Partners
BIP
$18.4B
| $1.11M | ﹤0.01% |
34,870
+2,229
| +7% | +$76K |
|
872
Mueller Industries
MLI
$14.7B
| $1.09M | ﹤0.01% |
+27,548
| New | +$1.12M |
|
|
SCHV
873
Schwab US Large-Cap Value ETF
SCHV
$16.3B
| $1.09M | ﹤0.01% |
41,866
+25,738
| +160% | +$695K |
|
874
JPMorgan BetaBuilders Canada ETF
BBCA
$11.4B
| $1.09M | ﹤0.01% |
15,424
-240
| -2% | -$17.5K |
|
875
Viper Energy
VNOM
$14.8B
| $1.08M | ﹤0.01% |
22,100
| – | – |
|
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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.