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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
ACWX icon
276
iShares MSCI ACWI ex US ETF
ACWX
$12B
$13.1M 0.05%
266,885
+21,222
+9% +$1.05M
MO icon
277
Altria Group
MO
$109B
$12.8M 0.05%
281,909
+3,068
+1% +$139K
DAY
278
DELISTED
Dayforce
DAY
$12.7M 0.05%
189,093
-7,401
-4% -$476K
RVNC
279
DELISTED
Revance Therapeutics, Inc.
RVNC
$12.6M 0.05%
496,275
+189,398
+62% +$5.9M
CI icon
280
Cigna
CI
$73.5B
$12.5M 0.05%
44,423
+4,065
+10% +$1.06M
AGG icon
281
iShares Core US Aggregate Bond ETF
AGG
$138B
$12.4M 0.05%
126,840
-838
-0.7% -$82.8K
OPRX icon
282
OptimizeRx
OPRX
$165M
$12.1M 0.04%
845,816
+2,404
+0.3% +$34.2K
J icon
283
Jacobs Solutions
J
$16.8B
$12.1M 0.04%
122,691
-32,362
-21% -$3.09M
ETN icon
284
Eaton
ETN
$176B
$11.9M 0.04%
59,310
+11,419
+24% +$2.01M
KLAC icon
285
KLA
KLAC
$274B
$11.9M 0.04%
244,400
-9,320
-4% -$389K
DEO icon
286
Diageo
DEO
$52.8B
$11.8M 0.04%
68,296
+1,773
+3% +$317K
XMTR icon
287
Xometry
XMTR
$5.42B
$11.8M 0.04%
559,188
-615,555
-52% -$10.8M
MPWR icon
288
Monolithic Power Systems
MPWR
$67B
$11.8M 0.04%
21,877
-1,485
-6% -$705K
GLOB icon
289
Globant
GLOB
$1.77B
$11.8M 0.04%
65,610
-1,758
-3% -$288K
OKTA icon
290
Okta
OKTA
$26.9B
$11.6M 0.04%
167,203
+735
+0.4% +$55.8K
T icon
291
AT&T
T
$168B
$11.6M 0.04%
725,912
-183,683
-20% -$3.13M
DOV icon
292
Dover
DOV
$27.8B
$11.5M 0.04%
77,737
-1,969
-2% -$281K
XLK icon
293
State Street Technology Select Sector SPDR ETF
XLK
$125B
$11.4M 0.04%
131,616
+1,812
+1% +$143K
APPF icon
294
AppFolio
APPF
$7.22B
$11.4M 0.04%
66,156
-1,150
-2% -$167K
MMP
295
DELISTED
Magellan Midstream Partners, L.P.
MMP
$11.4M 0.04%
182,575
-5,923
-3% -$346K
KNSL icon
296
Kinsale Capital Group
KNSL
$8.59B
$11.3M 0.04%
30,074
-3,811
-11% -$1.27M
PH icon
297
Parker-Hannifin
PH
$134B
$11.2M 0.04%
28,596
-523
-2% -$177K
KMI icon
298
Kinder Morgan
KMI
$71.4B
$11.1M 0.04%
642,215
+39,454
+7% +$670K
SDY icon
299
State Street SPDR S&P Dividend ETF
SDY
$22.2B
$11M 0.04%
90,027
-808
-0.9% -$98.7K
NOC icon
300
Northrop Grumman
NOC
$81.6B
$11M 0.04%
24,195
-481
-2% -$218K
10 11
12
13 14

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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.