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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+9.7%
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
$27.3B
AUM Growth
+$2.26B
Cap. Flow
+$202M
Cap. Flow %
0.74%
Top 10 Hldgs %
24.36%
Holding
1,897
New
97
Increased
682
Reduced
737
Closed
88

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$28.3M
2
ALL icon
Allstate
ALL
+$25.8M
3
ISRG icon
Intuitive Surgical
ISRG
+$19.6M
4
NEOG icon
Neogen
NEOG
+$17.4M
5
DV icon
DoubleVerify
DV
+$17.3M

Top Sells

Rank Stock Value
1
NBIX icon
Neurocrine Biosciences
NBIX
+$29.1M
2
PLNT icon
Planet Fitness
PLNT
+$20.4M
3
ABNB icon
Airbnb
ABNB
+$17.1M
4
IBM icon
IBM
IBM
+$14.8M
5
XMTR icon
Xometry
XMTR
+$10.8M

Sector Composition

Rank Sector Weight
1 Technology 25.59%
2 Healthcare 18.44%
3 Industrials 11.64%
4 Financials 11.51%
5 Consumer Discretionary 8.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
KO icon
51
Coca-Cola
KO
$374B
$127M 0.46%
2,102,165
-6,905
-0.3% -$430K
ISRG icon
52
Intuitive Surgical
ISRG
$142B
$125M 0.46%
365,971
+64,773
+22% +$19.6M
ROK icon
53
Rockwell Automation
ROK
$49.8B
$123M 0.45%
372,036
+7,527
+2% +$2.17M
WMT icon
54
Walmart Inc
WMT
$914B
$122M 0.45%
2,336,025
+99,555
+4% +$5.02M
AXP icon
55
American Express
AXP
$230B
$122M 0.45%
700,556
+19,961
+3% +$3.22M
BRK.B icon
56
Berkshire Hathaway Class B
BRK.B
$1.09T
$120M 0.44%
351,928
-6,188
-2% -$2.02M
AME icon
57
Ametek
AME
$59B
$120M 0.44%
738,217
-41
-0% -$5.99K
ITW icon
58
Illinois Tool Works
ITW
$83.4B
$114M 0.42%
454,863
-2,192
-0.5% -$513K
RYAN icon
59
Ryan Specialty Holdings
RYAN
$10.7B
$114M 0.42%
2,531,069
-17,059
-0.7% -$718K
UNP icon
60
Union Pacific
UNP
$174B
$110M 0.4%
537,151
+16,610
+3% +$3.3M
IRTC icon
61
iRhythm Holdings
IRTC
$4.05B
$109M 0.4%
1,042,434
+33,745
+3% +$4.05M
VIG icon
62
Vanguard Dividend Appreciation ETF
VIG
$115B
$108M 0.4%
667,917
+12,224
+2% +$1.91M
LULU icon
63
lululemon athletica
LULU
$13.9B
$108M 0.4%
285,255
-61
-0% -$22.5K
MDB icon
64
MongoDB
MDB
$35.3B
$107M 0.39%
260,477
+12,746
+5% +$3.72M
UBER icon
65
Uber
UBER
$155B
$106M 0.39%
2,456,049
+10,734
+0.4% +$399K
CVX icon
66
Chevron
CVX
$386B
$105M 0.38%
667,833
+25,497
+4% +$4.09M
MCD icon
67
McDonald's
MCD
$194B
$101M 0.37%
338,596
-4,315
-1% -$1.25M
EW icon
68
Edwards Lifesciences
EW
$53.2B
$100M 0.37%
1,061,669
+32,547
+3% +$2.83M
BX icon
69
Blackstone
BX
$109B
$99.7M 0.37%
1,072,309
-56,624
-5% -$4.89M
CMG icon
70
Chipotle Mexican Grill
CMG
$41.4B
$96.8M 0.35%
2,263,300
+251,400
+12% +$9.94M
PEP icon
71
PepsiCo
PEP
$188B
$96M 0.35%
518,108
+38,860
+8% +$7.25M
VEU icon
72
Vanguard FTSE All-World ex-US ETF
VEU
$70.5B
$95.8M 0.35%
1,761,381
+18,025
+1% +$977K
LIN icon
73
Linde
LIN
$222B
$95.5M 0.35%
250,735
+1,260
+0.5% +$460K
VTV icon
74
Vanguard Morningstar Value ETF
VTV
$193B
$95.3M 0.35%
670,769
-8,564
-1% -$1.19M
PODD icon
75
Insulet
PODD
$9.96B
$94.2M 0.35%
326,686
+3,136
+1% +$953K
1 2
3
4 5

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William Blair & Company's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair & Company held 1,897 positions worth $27.3B, up 9% from $25B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2023 filing shows 97 new, 682 increased, 737 reduced and 88 closed positions. Its largest new stake was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M. The largest sale was Neurocrine Biosciences, an estimated $29.1M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Industrials.

  • William Blair & Company's largest Q2 2023 buy was Innovator US Equity Power Buffer ETF April: 112,249 shares worth $3.47M.
  • William Blair & Company added most to Costco in Q2 2023, an estimated $28.3M increase.
  • William Blair & Company's biggest Q2 2023 reduction was Neurocrine Biosciences, cutting an estimated $29.1M.
  • William Blair & Company fully exited ABB Ltd in Q2 2023, selling an estimated $7.21M.
  • William Blair & Company's ten largest holdings make up 24% of its $27.3B portfolio in Q2 2023.
  • William Blair & Company opened 97 new positions and closed 88 in Q2 2023.
  • William Blair & Company's portfolio value rose 9% quarter-over-quarter to $27.3B.

Based on William Blair & Company's 13F filing for Q2 2023, filed 11 Aug 2023.