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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
DGRO icon
551
iShares Core Dividend Growth ETF
DGRO
$43.9B
$3.14M 0.01%
60,991
-554
-0.9% -$27.9K
PGX icon
552
Invesco Preferred ETF
PGX
$3.77B
$3.14M 0.01%
275,941
+42,924
+18% +$487K
AIZ icon
553
Assurant
AIZ
$13.9B
$3.13M 0.01%
24,914
-293
-1% -$36.5K
TT icon
554
Trane Technologies
TT
$105B
$3.13M 0.01%
16,371
+1,062
+7% +$188K
ROKU icon
555
Roku
ROKU
$22.9B
$3.13M 0.01%
48,884
-2,443
-5% -$148K
CMI icon
556
Cummins
CMI
$87B
$3.12M 0.01%
12,737
+250
+2% +$56.6K
SP
557
DELISTED
SP Plus Corporation
SP
$3.11M 0.01%
79,589
-9,437
-11% -$339K
CTLT
558
DELISTED
CATALENT, INC.
CTLT
$3.09M 0.01%
71,226
-28,848
-29% -$1.27M
IWS icon
559
iShares Russell Mid-Cap Value ETF
IWS
$16.1B
$3.07M 0.01%
27,936
-9,622
-26% -$1.01M
KNX icon
560
Knight Transportation
KNX
$11.9B
$3.06M 0.01%
55,041
+1,959
+4% +$109K
DSGR icon
561
Distribution Solutions Group
DSGR
$1.61B
$3.05M 0.01%
117,070
– –
LRCX icon
562
Lam Research
LRCX
$422B
$3.04M 0.01%
47,280
+9,140
+24% +$515K
ELS icon
563
Equity Lifestyle Properties
ELS
$12.6B
$3.04M 0.01%
45,400
-266
-0.6% -$17.7K
DAVA icon
564
Endava
DAVA
$167M
$3.04M 0.01%
58,628
+16,838
+40% +$905K
ES icon
565
Eversource Energy
ES
$27.2B
$3.03M 0.01%
42,746
+1,191
+3% +$88.7K
ELV icon
566
Elevance Health
ELV
$86.4B
$3.02M 0.01%
6,788
+1,251
+23% +$577K
BIIB icon
567
Biogen
BIIB
$31.1B
$3.01M 0.01%
10,555
-357
-3% -$106K
STR
568
DELISTED
Sitio Royalties
STR
$2.99M 0.01%
113,815
+1,677
+1% +$42.9K
XME icon
569
State Street SPDR S&P Metals & Mining ETF
XME
$4.46B
$2.99M 0.01%
58,793
-14,680
-20% -$721K
LSCC icon
570
Lattice Semiconductor
LSCC
$18.2B
$2.97M 0.01%
30,958
-77
-0.2% -$6.63K
IJUL icon
571
Innovator International Developed Power Buffer ETF July
IJUL
$258M
$2.96M 0.01%
112,695
+23,512
+26% +$609K
PBH icon
572
Prestige Consumer Healthcare
PBH
$2.43B
$2.95M 0.01%
49,624
+4,134
+9% +$247K
NET icon
573
Cloudflare
NET
$118B
$2.94M 0.01%
44,936
-2,841
-6% -$170K
CNC icon
574
Centene
CNC
$32.6B
$2.9M 0.01%
42,954
-2,113
-5% -$141K
MEDP icon
575
Medpace
MEDP
$16.2B
$2.9M 0.01%
12,054
-130
-1% -$27K
21 22
23
24 25

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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.