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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
JAZZ icon
1301
Jazz Pharmaceuticals
JAZZ
$16B
$260K ﹤0.01%
+2,096
New +$282K
LGF.B
1302
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
$258K ﹤0.01%
+30,900
New +$304K
KRE icon
1303
State Street SPDR S&P Regional Banking ETF
KRE
$4.66B
$258K ﹤0.01%
6,318
+446
+8% +$18.3K
PECO icon
1304
Phillips Edison & Co
PECO
$5.2B
$258K ﹤0.01%
7,569
+105
+1% +$3.28K
PKG icon
1305
Packaging Corp of America
PKG
$22.9B
$257K ﹤0.01%
1,947
+395
+25% +$52.8K
FLRN icon
1306
State Street SPDR Bloomberg Investment Grade Floating Rate ETF
FLRN
$2.97B
$257K ﹤0.01%
8,378
-996
-11% -$30.4K
LBTYK icon
1307
Liberty Global Class C
LBTYK
$3.43B
$257K ﹤0.01%
14,457
+308
+2% +$5.74K
FTS icon
1308
Fortis
FTS
$28.8B
$257K ﹤0.01%
5,959
-60
-1% -$2.61K
RBLX icon
1309
Roblox
RBLX
$25.8B
$256K ﹤0.01%
6,364
-676
-10% -$27.1K
CPAY icon
1310
Corpay
CPAY
$27.1B
$256K ﹤0.01%
1,021
-519
-34% -$118K
XNTK icon
1311
State Street SPDR NYSE Technology ETF
XNTK
$2.28B
$256K ﹤0.01%
1,837
– –
IDA icon
1312
Idacorp
IDA
$8.22B
$256K ﹤0.01%
2,492
+6
+0.2% +$645
ELAN icon
1313
Elanco Animal Health
ELAN
$11.3B
$254K ﹤0.01%
+25,270
New +$235K
FSLY icon
1314
Fastly Inc
FSLY
$4.59B
$254K ﹤0.01%
16,076
-381
-2% -$5.84K
MHK icon
1315
Mohawk Industries
MHK
$9.44B
$253K ﹤0.01%
+2,451
New +$240K
AOS icon
1316
A.O. Smith
AOS
$8.47B
$251K ﹤0.01%
3,447
+128
+4% +$8.76K
DIV icon
1317
Global X SuperDividend US ETF
DIV
$781M
$251K ﹤0.01%
15,000
– –
BOH icon
1318
Bank of Hawaii
BOH
$3.14B
$250K ﹤0.01%
+6,058
New +$268K
OABI icon
1319
OmniAb
OABI
$520M
$250K ﹤0.01%
49,639
-466
-0.9% -$1.89K
BKLN icon
1320
Invesco Senior Loan ETF
BKLN
$6.76B
$249K ﹤0.01%
11,837
+655
+6% +$13.6K
UHAL.B icon
1321
U-Haul Holding Co Series N
UHAL.B
$12.7B
$249K ﹤0.01%
4,910
-71
-1% -$3.72K
LTHM
1322
DELISTED
Livent Corporation
LTHM
$249K ﹤0.01%
+9,065
New +$217K
XBAP icon
1323
Innovator US Equity Accelerated 9 Buffer ETF April
XBAP
$133M
$249K ﹤0.01%
+8,582
New +$240K
TLRY icon
1324
Tilray
TLRY
$643M
$247K ﹤0.01%
15,831
-1
-0% -$21
NBHC icon
1325
National Bank Holdings
NBHC
$1.93B
$247K ﹤0.01%
8,500
– –
51 52
53
54 55

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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.