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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 | |
|---|---|---|---|---|---|---|
451
iShares US Medical Devices ETF
IHI
$3.48B
| $5.95M | 0.02% |
101,944
-2,019
| -2% | -$120K |
|
452
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$11.9B
| $5.94M | 0.02% |
119,320
+1,576
| +1% | +$82.9K |
|
453
Icon
ICLR
$12.9B
| $5.89M | 0.02% |
28,074
-95,442
| -77% | -$22.3M |
|
454
Regions Financial
RF
$26.9B
| $5.86M | 0.02% |
249,307
-8,258
| -3% | -$204K |
|
455
Vanguard International Dividend Appreciation ETF
VIGI
$9.28B
| $5.85M | 0.02% |
73,158
-3,008
| -4% | -$253K |
|
456
Schwab US Large-Cap Growth ETF
SCHG
$62.6B
| $5.82M | 0.02% |
208,781
+1,841
| +0.9% | +$50.3K |
|
457
Thryv Holdings
THRY
$92M
| $5.78M | 0.02% |
390,546
+33,883
| +10% | +$534K |
|
458
Innovator US Equity Power Buffer ETF June
PJUN
$976M
| $5.75M | 0.02% |
153,260
-25
| -0% | -$933 |
|
459
Global X Robotics & Artificial Intelligence ETF
BOTZ
$3.59B
| $5.74M | 0.02% |
179,549
+10,611
| +6% | +$346K |
|
460
Mercury Systems
MRCY
$6.7B
| $5.71M | 0.02% |
136,039
-21,154
| -13% | -$807K |
|
|
THR
461
DELISTED
Thermon Group Holdings
THR
| $5.71M | 0.02% |
198,429
+7,328
| +4% | +$216K |
|
462
Vanguard Industrials ETF
VIS
$8.5B
| $5.7M | 0.02% |
22,423
-42
| -0.2% | -$11.2K |
|
463
Five Below
FIVE
$13.2B
| $5.65M | 0.02% |
53,868
-9,657
| -15% | -$924K |
|
464
Fair Isaac
FICO
$22.6B
| $5.65M | 0.02% |
2,839
+852
| +43% | +$1.82M |
|
465
Datadog
DDOG
$86.5B
| $5.6M | 0.02% |
39,193
+7,415
| +23% | +$1.02M |
|
|
VPU
466
Vanguard Utilities ETF
VPU
$8.48B
| $5.56M | 0.02% |
34,043
+9,893
| +41% | +$1.69M |
|
467
SiteOne Landscape Supply
SITE
$4.22B
| $5.56M | 0.02% |
42,203
-30
| -0.1% | -$4.33K |
|
468
iShares MSCI EAFE Value ETF
EFV
$30.1B
| $5.54M | 0.02% |
105,587
-12,520
| -11% | -$686K |
|
469
Remitly
RELY
$5.1B
| $5.53M | 0.02% |
245,131
+48,447
| +25% | +$892K |
|
|
NVO
470
Novo Nordisk
NVO
$203B
| $5.5M | 0.02% |
63,973
-15,720
| -20% | -$1.7M |
|
471
ASML
ASML
$695B
| $5.5M | 0.02% |
7,937
-9,640
| -55% | -$6.92M |
|
472
Vanguard Intermediate-Term Corporate Bond ETF
VCIT
$67.6B
| $5.46M | 0.02% |
67,997
+1,422
| +2% | +$116K |
|
473
Diageo
DEO
$52.2B
| $5.45M | 0.02% |
42,876
-3,536
| -8% | -$450K |
|
474
ARK Innovation ETF
ARKK
$6.44B
| $5.44M | 0.02% |
95,908
+50,639
| +112% | +$2.71M |
|
475
Xylem
XYL
$28.5B
| $5.44M | 0.02% |
46,854
+222
| +0.5% | +$28.1K |
|
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HF
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.