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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
RSPT icon
651
Invesco S&P 500 Equal Weight Technology ETF
RSPT
$6.05B
$2.08M 0.01%
70,870
-56,870
-45% -$1.56M
VICI icon
652
VICI Properties
VICI
$29B
$2.08M 0.01%
66,162
-10,007
-13% -$321K
ALRM icon
653
Alarm.com
ALRM
$2.74B
$2.06M 0.01%
39,852
-110
-0.3% -$5.41K
PCYO icon
654
Pure Cycle
PCYO
$273M
$2.06M 0.01%
187,220
-15,191
-8% -$151K
MGM icon
655
MGM Resorts International
MGM
$11.1B
$2.06M 0.01%
46,801
+9,551
+26% +$408K
IPG
656
DELISTED
Interpublic Group of Companies
IPG
$2.05M 0.01%
53,194
-5,627
-10% -$212K
GAIN icon
657
Gladstone Investment Corp
GAIN
$658M
$2.05M 0.01%
157,204
-1,650
-1% -$21.7K
DGX icon
658
Quest Diagnostics
DGX
$26.1B
$2.04M 0.01%
14,485
+173
+1% +$23.8K
HTGC icon
659
Hercules Capital
HTGC
$3.17B
$2.03M 0.01%
137,379
– –
DLR icon
660
Digital Realty Trust
DLR
$73.1B
$2.03M 0.01%
17,784
-3,059
-15% -$303K
EB
661
DELISTED
Eventbrite
EB
$2.02M 0.01%
211,965
-3,539
-2% -$27.8K
FTEC icon
662
Fidelity MSCI Information Technology Index ETF
FTEC
$21.6B
$2.02M 0.01%
15,459
-400
-3% -$47.5K
CHKP icon
663
Check Point Software Technologies
CHKP
$13.7B
$2.02M 0.01%
16,071
-918
-5% -$116K
WYNN icon
664
Wynn Resorts
WYNN
$10.5B
$2M 0.01%
18,978
-662
-3% -$70.9K
IJJ icon
665
iShares S&P Mid-Cap 400 Value ETF
IJJ
$9.08B
$2M 0.01%
18,697
-924
-5% -$93.9K
MINT icon
666
PIMCO Enhanced Short Maturity Active Exchange-Traded Fund
MINT
$17.1B
$2M 0.01%
20,044
+3,793
+23% +$377K
GPC icon
667
Genuine Parts
GPC
$18.7B
$1.99M 0.01%
11,767
+277
+2% +$45.3K
CSGS
668
DELISTED
CSG Systems International
CSGS
$1.99M 0.01%
37,680
-5,117
-12% -$261K
VLUE icon
669
iShares MSCI USA Value Factor ETF
VLUE
$9.72B
$1.99M 0.01%
21,178
+8,984
+74% +$818K
AMG icon
670
Affiliated Managers Group
AMG
$9.7B
$1.99M 0.01%
13,251
-646
-5% -$92.5K
HCP
671
DELISTED
HashiCorp, Inc. Class A Common Stock
HCP
$1.96M 0.01%
74,924
+10,885
+17% +$319K
VCIT icon
672
Vanguard Intermediate-Term Corporate Bond ETF
VCIT
$67.8B
$1.93M 0.01%
24,400
+4,342
+22% +$345K
NTAP icon
673
NetApp
NTAP
$40.2B
$1.93M 0.01%
25,222
+5,854
+30% +$395K
PRI icon
674
Primerica
PRI
$9.62B
$1.91M 0.01%
9,652
+7,717
+399% +$1.42M
VGK icon
675
Vanguard FTSE Europe ETF
VGK
$31.1B
$1.91M 0.01%
30,930
+1,825
+6% +$113K
25 26
27
28 29

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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.