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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 | |
|---|---|---|---|---|---|---|
526
Archer Aviation
ACHR
$5.07B
| $4.45M | 0.01% |
456,307
+366,333
| +407% | +$2.04M |
|
527
Devon Energy
DVN
$48.1B
| $4.45M | 0.01% |
135,871
+1,414
| +1% | +$53.3K |
|
528
e.l.f. Beauty
ELF
$5.49B
| $4.45M | 0.01% |
35,414
+16,353
| +86% | +$1.96M |
|
529
Invesco Preferred ETF
PGX
$3.77B
| $4.43M | 0.01% |
384,235
-14,462
| -4% | -$174K |
|
530
Strategy Inc
MSTR
$38.4B
| $4.39M | 0.01% |
15,158
+2,523
| +20% | +$759K |
|
531
Western Alliance Bancorporation
WAL
$9.1B
| $4.37M | 0.01% |
52,264
+40,154
| +332% | +$3.53M |
|
532
GXO Logistics
GXO
$5.59B
| $4.36M | 0.01% |
100,274
-27,875
| -22% | -$1.53M |
|
|
HDV
533
iShares Core High Dividend ETF
HDV
$15.1B
| $4.34M | 0.01% |
193,445
+690
| +0.4% | +$16.2K |
|
534
VICI Properties
VICI
$29.1B
| $4.32M | 0.01% |
147,939
+14,892
| +11% | +$471K |
|
535
Crown Castle
CCI
$31.7B
| $4.32M | 0.01% |
47,587
-9,359
| -16% | -$978K |
|
536
Kadant
KAI
$3.94B
| $4.28M | 0.01% |
12,393
-10,767
| -46% | -$3.91M |
|
537
Hercules Capital
HTGC
$3.15B
| $4.28M | 0.01% |
212,810
| – | – |
|
538
Littelfuse
LFUS
$11.6B
| $4.23M | 0.01% |
17,930
-1,752
| -9% | -$437K |
|
539
Dolby
DLB
$5.82B
| $4.2M | 0.01% |
53,742
-1,220
| -2% | -$92.9K |
|
540
Leidos
LDOS
$17.7B
| $4.18M | 0.01% |
29,013
-8,033
| -22% | -$1.34M |
|
541
WEC Energy
WEC
$35.7B
| $4.16M | 0.01% |
44,266
+168
| +0.4% | +$16.3K |
|
542
KKR & Co
KKR
$102B
| $4.16M | 0.01% |
28,132
+2,309
| +9% | +$339K |
|
543
Best Buy
BBY
$17.9B
| $4.16M | 0.01% |
48,444
+324
| +0.7% | +$29.6K |
|
544
State Street Industrial Select Sector SPDR ETF
XLI
$34.6B
| $4.15M | 0.01% |
31,513
+285
| +0.9% | +$39.3K |
|
545
Kenvue
KVUE
$36.9B
| $4.15M | 0.01% |
194,250
+1,755
| +0.9% | +$39.8K |
|
546
AeroVironment
AVAV
$9.68B
| $4.14M | 0.01% |
26,901
+16,576
| +161% | +$3.24M |
|
547
Innovator US Equity Power Buffer ETF September
PSEP
$842M
| $4.14M | 0.01% |
105,845
+2,465
| +2% | +$96.1K |
|
548
Capital One
COF
$137B
| $4.13M | 0.01% |
23,137
-1,186
| -5% | -$205K |
|
549
State Street Utilities Select Sector SPDR ETF
XLU
$22.9B
| $4.11M | 0.01% |
108,694
-3,598
| -3% | -$143K |
|
550
State Street SPDR MSCI USA Gender Diversity ETF
SHE
$337M
| $4.11M | 0.01% |
35,488
+203
| +0.6% | +$23.9K |
|
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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.