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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 | |
|---|---|---|---|---|---|---|
826
Vanguard Consumer Discretionary ETF
VCR
$6.11B
| $1.24M | ﹤0.01% |
3,316
-113
| -3% | -$40.8K |
|
827
Nutrien
NTR
$32.2B
| $1.24M | ﹤0.01% |
27,785
-125
| -0.4% | -$5.93K |
|
828
DTE Energy
DTE
$29B
| $1.24M | ﹤0.01% |
10,295
+751
| +8% | +$92.6K |
|
829
Avery Dennison
AVY
$13.6B
| $1.24M | ﹤0.01% |
6,606
-194
| -3% | -$39.6K |
|
830
Cardiff Oncology
CRDF
$76.6M
| $1.22M | ﹤0.01% |
282,025
+34,947
| +14% | +$109K |
|
831
State Street Materials Select Sector SPDR ETF
XLB
$8.57B
| $1.22M | ﹤0.01% |
28,942
-3,080
| -10% | -$143K |
|
832
Old Republic International
ORI
$10.3B
| $1.22M | ﹤0.01% |
33,602
-3,774
| -10% | -$138K |
|
833
State Street Real Estate Select Sector SPDR ETF
XLRE
$8.68B
| $1.22M | ﹤0.01% |
29,876
-430
| -1% | -$18.6K |
|
834
Invesco S&P 500 Top 50 ETF
XLG
$11B
| $1.21M | ﹤0.01% |
24,310
+650
| +3% | +$32K |
|
835
Merit Medical Systems
MMSI
$5.4B
| $1.21M | ﹤0.01% |
12,517
-4,318
| -26% | -$430K |
|
836
Vanguard Morningstar Large-Cap ETF
VV
$54.9B
| $1.21M | ﹤0.01% |
4,472
-249
| -5% | -$67.5K |
|
837
Innovator US Equity Power Buffer ETF November
PNOV
$898M
| $1.2M | ﹤0.01% |
+31,792
| New | +$1.2M |
|
838
Newmont
NEM
$120B
| $1.2M | ﹤0.01% |
32,294
-370
| -1% | -$16.9K |
|
839
Vanguard Global ex-US Real Estate ETF
VNQI
$3.52B
| $1.2M | ﹤0.01% |
30,258
-591
| -2% | -$25.6K |
|
840
State Street
STT
$52.2B
| $1.19M | ﹤0.01% |
12,129
+99
| +0.8% | +$9.38K |
|
841
Huron Consulting
HURN
$2.47B
| $1.19M | ﹤0.01% |
9,574
-598
| -6% | -$70.1K |
|
|
AMTM
842
Amentum Holdings
AMTM
$5.3B
| $1.19M | ﹤0.01% |
56,419
+26,982
| +92% | +$697K |
|
843
WisdomTree US Total Dividend Fund
DTD
$1.7B
| $1.18M | ﹤0.01% |
15,620
| – | – |
|
844
Ingersoll Rand
IR
$32.7B
| $1.18M | ﹤0.01% |
13,049
-1,046
| -7% | -$104K |
|
845
Vanguard Financials ETF
VFH
$14B
| $1.18M | ﹤0.01% |
9,995
-250
| -2% | -$29.6K |
|
846
W.P. Carey
WPC
$16.3B
| $1.18M | ﹤0.01% |
21,638
-1,537
| -7% | -$87.6K |
|
847
iShares US Financials ETF
IYF
$4.44B
| $1.18M | ﹤0.01% |
10,650
+3,091
| +41% | +$344K |
|
848
MaxCyte
MXCT
$149M
| $1.18M | ﹤0.01% |
282,859
+9,900
| +4% | +$37.4K |
|
849
State Street SPDR Portfolio S&P 500 Value ETF
SPYV
$36.8B
| $1.18M | ﹤0.01% |
22,986
+1,640
| +8% | +$87.3K |
|
850
EQT Corp
EQT
$33.8B
| $1.17M | ﹤0.01% |
25,423
+19,701
| +344% | +$812K |
|
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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.