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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
CRWD icon
426
CrowdStrike
CRWD
$230B
$5.43M 0.02%
147,800
+880
+0.6% +$30.7K
BILL icon
427
BILL Holdings
BILL
$5.11B
$5.41M 0.02%
46,338
+18,467
+66% +$1.75M
BR icon
428
Broadridge
BR
$19.6B
$5.39M 0.02%
32,513
+979
+3% +$148K
SRPT icon
429
Sarepta Therapeutics
SRPT
$1.95B
$5.38M 0.02%
46,995
+25,983
+124% +$3.35M
ARES icon
430
Ares Management
ARES
$33.7B
$5.34M 0.02%
55,410
+711
+1% +$61.5K
EFV icon
431
iShares MSCI EAFE Value ETF
EFV
$30.1B
$5.29M 0.02%
108,097
+10,493
+11% +$517K
RSG icon
432
Republic Services
RSG
$65.9B
$5.28M 0.02%
34,493
+2,846
+9% +$407K
DBX icon
433
Dropbox
DBX
$7.81B
$5.27M 0.02%
197,640
+5,464
+3% +$125K
TTWO icon
434
Take-Two Interactive
TTWO
$45.2B
$5.22M 0.02%
35,491
-976
-3% -$128K
DDOG icon
435
Datadog
DDOG
$90.6B
$5.18M 0.02%
52,635
+6,203
+13% +$519K
NOBL icon
436
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$12B
$5.17M 0.02%
109,758
-4,204
-4% -$192K
PRF icon
437
Invesco FTSE RAFI US 1000 ETF
PRF
$10.1B
$5.15M 0.02%
157,490
-2,840
-2% -$89.6K
THR
438
DELISTED
Thermon Group Holdings
THR
$5.14M 0.02%
193,300
+114,905
+147% +$2.67M
SCHD icon
439
Schwab US Dividend Equity ETF
SCHD
$108B
$5.11M 0.02%
211,077
-45,987
-18% -$1.1M
INCY icon
440
Incyte
INCY
$24.4B
$5.11M 0.02%
82,042
+26,482
+48% +$1.77M
MRCY icon
441
Mercury Systems
MRCY
$6.59B
$5.1M 0.02%
147,391
-16,417
-10% -$701K
ET icon
442
Energy Transfer Partners
ET
$71.5B
$5.08M 0.02%
399,831
-3,730
-0.9% -$47.3K
XLU icon
443
State Street Utilities Select Sector SPDR ETF
XLU
$22.9B
$5.07M 0.02%
154,978
-5,730
-4% -$193K
IVE icon
444
iShares S&P 500 Value ETF
IVE
$50.3B
$5.06M 0.02%
31,400
+1,956
+7% +$301K
RH icon
445
RH
RH
$3.4B
$5.06M 0.02%
15,356
+531
+4% +$139K
VIGI icon
446
Vanguard International Dividend Appreciation ETF
VIGI
$9.32B
$5.04M 0.02%
67,103
+1,044
+2% +$78.5K
JCI icon
447
Johnson Controls International
JCI
$91.7B
$5.04M 0.02%
73,926
+1,293
+2% +$79.5K
HEFA icon
448
iShares Currency Hedged MSCI EAFE ETF
HEFA
$7.81B
$5.04M 0.02%
162,428
-16,089
-9% -$487K
JAMF
449
DELISTED
Jamf
JAMF
$5.04M 0.02%
257,951
+69,497
+37% +$1.29M
CTVA icon
450
Corteva
CTVA
$50.6B
$5.01M 0.02%
87,459
-7,172
-8% -$419K
16 17
18
19 20

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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.