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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 | |
|---|---|---|---|---|---|---|
251
CDW
CDW
$17.1B
| $16.4M | 0.05% |
94,190
-17,885
| -16% | -$3.47M |
|
252
FirstService
FSV
$6.24B
| $16.4M | 0.05% |
90,464
-3,918
| -4% | -$732K |
|
253
Synopsys
SNPS
$79B
| $16.2M | 0.05% |
33,432
-15,558
| -32% | -$8.13M |
|
254
Global X US Infrastructure Development ETF
PAVE
$14.3B
| $16.2M | 0.05% |
400,912
-6,829
| -2% | -$293K |
|
255
Korn Ferry
KFY
$4.28B
| $16.2M | 0.05% |
239,893
+473
| +0.2% | +$34.4K |
|
256
Cogent Communications
CCOI
$525M
| $16.1M | 0.05% |
208,773
-16,539
| -7% | -$1.32M |
|
257
Chubb
CB
$132B
| $16.1M | 0.05% |
58,166
+4,095
| +8% | +$1.16M |
|
258
SBA Communications
SBAC
$19.4B
| $15.8M | 0.05% |
77,481
+3,229
| +4% | +$727K |
|
259
ScottsMiracle-Gro
SMG
$3.62B
| $15.7M | 0.05% |
237,264
-41,651
| -15% | -$3.29M |
|
260
Align Technology
ALGN
$12.4B
| $15.7M | 0.05% |
75,449
-65,601
| -47% | -$14.7M |
|
261
Verra Mobility
VRRM
$714M
| $15.6M | 0.05% |
643,526
-30,625
| -5% | -$759K |
|
262
Capital Group Dividend Value ETF
CGDV
$38.9B
| $15.5M | 0.05% |
440,091
+40,257
| +10% | +$1.46M |
|
263
Exelixis
EXEL
$12.5B
| $15.2M | 0.04% |
457,570
-300,760
| -40% | -$9.76M |
|
264
Yeti Holdings
YETI
$3.85B
| $15.2M | 0.04% |
394,599
-31,895
| -7% | -$1.27M |
|
265
iShares Russell 2500 ETF
SMMD
$3.75B
| $15.1M | 0.04% |
222,745
+141,591
| +174% | +$9.9M |
|
266
Planet Fitness
PLNT
$3.65B
| $15.1M | 0.04% |
153,192
-22,058
| -13% | -$2.01M |
|
267
iShares Core MSCI Emerging Markets ETF
IEMG
$158B
| $15.1M | 0.04% |
289,866
+3,423
| +1% | +$190K |
|
268
Equifax
EFX
$21.2B
| $15.1M | 0.04% |
59,374
-184
| -0.3% | -$49.3K |
|
269
Palomar
PLMR
$3.36B
| $15.1M | 0.04% |
142,735
-1,968
| -1% | -$200K |
|
270
Cummins
CMI
$87.8B
| $15.1M | 0.04% |
43,183
+1,108
| +3% | +$389K |
|
271
iShares Gold Trust
IAU
$65.4B
| $15M | 0.04% |
303,607
-40,995
| -12% | -$2.06M |
|
272
CAVA Group
CAVA
$8.09B
| $15M | 0.04% |
132,822
+7,632
| +6% | +$1.02M |
|
273
iShares MSCI ACWI ex US ETF
ACWX
$12B
| $15M | 0.04% |
286,760
+6,366
| +2% | +$348K |
|
274
Compass Diversified
CODI
$908M
| $14.9M | 0.04% |
647,387
-18,012
| -3% | -$404K |
|
275
AstraZeneca
AZN
$246B
| $14.9M | 0.04% |
113,958
-3,766
| -3% | -$527K |
|
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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.