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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 | |
|---|---|---|---|---|---|---|
926
VSE Corp
VSEC
$6.48B
| $908K | ﹤0.01% |
9,547
-305
| -3% | -$32.1K |
|
927
Schwab 5-10 Year Corporate Bond ETF
SCHI
$11.5B
| $903K | ﹤0.01% |
40,919
+40,553
| +11,080% | +$911K |
|
928
Jabil
JBL
$38.8B
| $896K | ﹤0.01% |
6,226
-43
| -0.7% | -$5.64K |
|
929
Essential Utilities
WTRG
$11.5B
| $895K | ﹤0.01% |
24,652
+285
| +1% | +$11.1K |
|
930
PIMCO 25+ Year Zero Coupon US Treasury Index Exchange-Traded Fund
ZROZ
$1.31B
| $895K | ﹤0.01% |
13,045
-1,507
| -10% | -$113K |
|
931
Regeneron Pharmaceuticals
REGN
$83B
| $894K | ﹤0.01% |
1,255
-788
| -39% | -$661K |
|
932
Assurant
AIZ
$13.9B
| $893K | ﹤0.01% |
4,187
-120
| -3% | -$25K |
|
933
Inspire Medical Systems
INSP
$1.68B
| $893K | ﹤0.01% |
4,816
-3,501
| -42% | -$680K |
|
934
State Street SPDR S&P 600 Small Cap Value ETF
SLYV
$5.12B
| $892K | ﹤0.01% |
10,222
-1,550
| -13% | -$138K |
|
935
Penumbra
PEN
$12.9B
| $888K | ﹤0.01% |
3,740
-5,140
| -58% | -$1.17M |
|
936
NextNav
NN
$3.29B
| $887K | ﹤0.01% |
57,000
+7,000
| +14% | +$93.3K |
|
937
MPLX
MPLX
$59.6B
| $886K | ﹤0.01% |
18,520
+5,965
| +48% | +$278K |
|
938
Toronto Dominion Bank
TD
$203B
| $883K | ﹤0.01% |
16,580
-756
| -4% | -$42.4K |
|
939
Neurocrine Biosciences
NBIX
$15.3B
| $881K | ﹤0.01% |
6,456
+12
| +0.2% | +$1.48K |
|
940
Emcor
EME
$36.7B
| $879K | ﹤0.01% |
1,936
-105
| -5% | -$49.7K |
|
941
Deckers Outdoor
DECK
$12.7B
| $870K | ﹤0.01% |
4,284
-36
| -0.8% | -$6.51K |
|
942
iShares MSCI Global Min Vol Factor ETF
ACWV
$3.38B
| $863K | ﹤0.01% |
7,899
+129
| +2% | +$14.6K |
|
943
The Mosaic Company
MOS
$6.92B
| $859K | ﹤0.01% |
34,962
+4,574
| +15% | +$120K |
|
|
CFLT
944
DELISTED
Confluent
CFLT
| $858K | ﹤0.01% |
30,685
-36,293
| -54% | -$973K |
|
945
Elanco Animal Health
ELAN
$11.2B
| $853K | ﹤0.01% |
70,430
+10,400
| +17% | +$136K |
|
946
Sun Life Financial
SLF
$44.8B
| $849K | ﹤0.01% |
14,306
-168
| -1% | -$9.91K |
|
947
PENN Entertainment
PENN
$2.53B
| $846K | ﹤0.01% |
42,682
| – | – |
|
948
Expeditors International
EXPD
$24.3B
| $844K | ﹤0.01% |
7,618
-976
| -11% | -$116K |
|
949
Invesco Actively Managed Exch-Traded Commodity Fd Tr Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF
PDBC
$6.61B
| $843K | ﹤0.01% |
64,871
-764
| -1% | -$10.3K |
|
950
Johnson Controls International
JCI
$91.7B
| $841K | ﹤0.01% |
10,655
+491
| +5% | +$39.4K |
|
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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.