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William Blair & Company Portfolio holdings
AUM
$34.9B
1-Year Est. Return
18.88%
This Fund
S&P 500
This Quarter
Est. Return
+12.61%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$36B
AUM Growth
+$2.85B
(+8.6%)
Cap. Flow
-$222M
Cap. Flow
% of AUM
-0.62%
Top 10 Holdings %
Top 10 Hldgs %
24.91%
Holding
1,911
New
111
Increased
662
Reduced
757
Closed
87
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
GE Vernova
GEV
|
+$116M |
| 2 |
Boeing
BA
|
+$34M |
| 3 |
CWAN
Clearwater Analytics
CWAN
|
+$31.2M |
| 4 |
NVIDIA
NVDA
|
+$27.5M |
| 5 |
Cloudflare
NET
|
+$26.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
XYZ
Block Inc
XYZ
|
+$79.4M |
| 2 |
Zoetis
ZTS
|
+$41.3M |
| 3 |
Accenture
ACN
|
+$40.8M |
| 4 |
iShares Core S&P Mid-Cap ETF
IJH
|
+$40.7M |
| 5 |
UnitedHealth
UNH
|
+$36.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 27.47% |
| 2 | Financials | 13.92% |
| 3 | Industrials | 12.94% |
| 4 | Healthcare | 11.51% |
| 5 | Consumer Discretionary | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
901
Expeditors International
EXPD
$23.2B
| $1.01M | ﹤0.01% |
8,830
-191
| -2% | -$21.4K |
|
902
VanEck High Yield Muni ETF
HYD
$4.45B
| $1M | ﹤0.01% |
20,000
-205
| -1% | -$10.2K |
|
|
TWFG
903
TWFG Inc
TWFG
$378M
| $997K | ﹤0.01% |
28,487
-2,849
| -9% | -$95K |
|
904
Goosehead Insurance
GSHD
$2.32B
| $996K | ﹤0.01% |
9,443
-470
| -5% | -$49.8K |
|
905
Commault Systems
CVLT
$5.61B
| $993K | ﹤0.01% |
5,697
+1,072
| +23% | +$183K |
|
906
Carlyle Group
CG
$17.2B
| $986K | ﹤0.01% |
19,179
-2,274
| -11% | -$98K |
|
907
Genuine Parts
GPC
$18.7B
| $981K | ﹤0.01% |
8,088
-147
| -2% | -$17.7K |
|
908
iShares 20+ Year Treasury Bond ETF
TLT
$41.7B
| $977K | ﹤0.01% |
11,068
-3,785
| -25% | -$330K |
|
909
Rio Tinto
RIO
$164B
| $960K | ﹤0.01% |
16,453
+2,483
| +18% | +$147K |
|
|
GRMN
910
Garmin
GRMN
$60B
| $955K | ﹤0.01% |
4,573
+178
| +4% | +$35.3K |
|
911
Yum China
YUMC
$16.3B
| $954K | ﹤0.01% |
21,327
-4,079
| -16% | -$182K |
|
912
InterDigital
IDCC
$8.89B
| $953K | ﹤0.01% |
4,252
+5
| +0.1% | +$1.06K |
|
|
FFIC
913
DELISTED
Flushing Financial
FFIC
| $952K | ﹤0.01% |
80,170
| – | – |
|
914
Sun Life Financial
SLF
$45.4B
| $951K | ﹤0.01% |
14,311
+2
| +0% | +$123 |
|
915
Tactile Systems Technology
TCMD
$665M
| $941K | ﹤0.01% |
92,793
-69,471
| -43% | -$794K |
|
916
NiSource
NI
$20.4B
| $940K | ﹤0.01% |
23,302
+1,657
| +8% | +$65K |
|
917
Wells Fargo 7.5% Non Cumv Perp Conv
WFC.PRL
$4.66B
| $939K | ﹤0.01% |
800
+458
| +134% | +$533K |
|
918
VanEck Junior Gold Miners ETF
GDXJ
$8.46B
| $937K | ﹤0.01% |
13,860
-250
| -2% | -$15.8K |
|
|
THS
919
DELISTED
Treehouse Foods
THS
| $937K | ﹤0.01% |
48,234
-12,008
| -20% | -$269K |
|
920
Jefferies Financial Group
JEF
$13.1B
| $928K | ﹤0.01% |
16,960
-81
| -0.5% | -$4.01K |
|
921
Occidental Petroleum
OXY
$55.9B
| $925K | ﹤0.01% |
22,014
+819
| +4% | +$34.2K |
|
922
iShares MSCI ACWI ETF
ACWI
$33.5B
| $914K | ﹤0.01% |
7,106
+32
| +0.5% | +$3.84K |
|
923
Morningstar
MORN
$7.53B
| $909K | ﹤0.01% |
2,896
-1,250
| -30% | -$370K |
|
924
Oshkosh
OSK
$9.59B
| $905K | ﹤0.01% |
7,974
| – | – |
|
925
Vital Farms
VITL
$525M
| $903K | ﹤0.01% |
23,450
-8,370
| -26% | -$283K |
|
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William Blair & Company's Q2 2025 Portfolio in Review
As of Q2 2025, William Blair & Company held 1,911 positions worth $36B, up 8.6% from $33.2B the previous quarter. Its ten largest holdings account for 25% of the portfolio.
William Blair & Company's Q2 2025 filing shows 111 new, 662 increased, 757 reduced and 87 closed positions. Its largest new stake was Affirm: 304,959 shares worth $21.1M. The largest sale was Block Inc, an estimated $79.4M.
By sector, the portfolio is most concentrated in Technology at 27% of assets, up from 26% a quarter earlier, followed by Financials and Industrials.
- William Blair & Company's largest Q2 2025 buy was Affirm: 304,959 shares worth $21.1M.
- William Blair & Company added most to GE Vernova in Q2 2025, an estimated $116M increase.
- William Blair & Company's biggest Q2 2025 reduction was Block Inc, cutting an estimated $79.4M.
- William Blair & Company fully exited Discover Financial Services in Q2 2025, selling an estimated $5.21M.
- William Blair & Company's ten largest holdings make up 25% of its $36B portfolio in Q2 2025.
- William Blair & Company opened 111 new positions and closed 87 in Q2 2025.
- William Blair & Company's portfolio value rose 8.6% quarter-over-quarter to $36B.
Based on William Blair & Company's 13F filing for Q2 2025, filed 24 Jul 2025.