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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 | |
|---|---|---|---|---|---|---|
401
Snowflake
SNOW
$115B
| $7.42M | 0.02% |
48,049
+7,928
| +20% | +$1.12M |
|
402
Marathon Petroleum
MPC
$97.8B
| $7.41M | 0.02% |
53,151
+4,908
| +10% | +$749K |
|
403
Jacobs Solutions
J
$17B
| $7.38M | 0.02% |
55,786
+2,534
| +5% | +$349K |
|
404
J.M. Smucker
SJM
$12.7B
| $7.32M | 0.02% |
66,494
-13,855
| -17% | -$1.59M |
|
405
Zoom
ZM
$30.8B
| $7.31M | 0.02% |
89,552
-31,806
| -26% | -$2.5M |
|
406
TE Connectivity
TEL
$62B
| $7.3M | 0.02% |
51,029
-786
| -2% | -$117K |
|
407
State Street Communication Services Select Sector SPDR ETF
XLC
$22.3B
| $7.28M | 0.02% |
75,163
+1,068
| +1% | +$102K |
|
408
iShares S&P 500 Value ETF
IVE
$50B
| $7.27M | 0.02% |
38,101
+697
| +2% | +$138K |
|
409
Innovator International Developed Power Buffer ETF January
IJAN
$263M
| $7.27M | 0.02% |
240,518
-14,665
| -6% | -$463K |
|
410
Tetra Tech
TTEK
$9.09B
| $7.25M | 0.02% |
181,894
-286,029
| -61% | -$12.8M |
|
411
Dow Inc
DOW
$22.1B
| $7.18M | 0.02% |
178,881
-128,699
| -42% | -$6M |
|
412
Prestige Consumer Healthcare
PBH
$2.48B
| $7.12M | 0.02% |
91,147
-57
| -0.1% | -$4.42K |
|
413
Glaukos
GKOS
$11B
| $7.11M | 0.02% |
47,404
-669
| -1% | -$92.2K |
|
|
DAY
414
DELISTED
Dayforce
DAY
| $7.04M | 0.02% |
96,940
-8,223
| -8% | -$596K |
|
415
Capital Group Growth ETF
CGGR
$25B
| $7.02M | 0.02% |
188,822
+22,537
| +14% | +$828K |
|
|
UCB
416
United Community Banks
UCB
$4.39B
| $6.99M | 0.02% |
216,443
| – | – |
|
417
LPL Financial
LPLA
$29.7B
| $6.97M | 0.02% |
21,356
-1,766
| -8% | -$522K |
|
418
Vistra
VST
$49.2B
| $6.84M | 0.02% |
49,594
+39,735
| +403% | +$5.52M |
|
419
Monolithic Power Systems
MPWR
$70B
| $6.72M | 0.02% |
11,358
+1,759
| +18% | +$1.27M |
|
420
HP
HPQ
$26.8B
| $6.71M | 0.02% |
205,726
+370
| +0.2% | +$13.3K |
|
421
Unilever
UL
$133B
| $6.7M | 0.02% |
104,976
-1,495
| -1% | -$101K |
|
422
Intel
INTC
$509B
| $6.69M | 0.02% |
333,839
-5,498
| -2% | -$124K |
|
423
Hershey
HSY
$37B
| $6.67M | 0.02% |
39,387
+2,365
| +6% | +$424K |
|
424
iShares 0-5 Year TIPS Bond ETF
STIP
$15.9B
| $6.66M | 0.02% |
66,173
+1,255
| +2% | +$127K |
|
425
iShares MSCI Emerging Markets ETF
EEM
$30.4B
| $6.65M | 0.02% |
159,062
-19,117
| -11% | -$847K |
|
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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.