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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+9.84%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$31.2B
AUM Growth
+$2.49B
Cap. Flow
+$357M
Cap. Flow %
1.14%
Top 10 Hldgs %
20.4%
Holding
426
New
33
Increased
232
Reduced
127
Closed
31

Top Buys

Rank Stock Value
1
TECH icon
Bio-Techne
TECH
+$186M
2
TYL icon
Tyler Technologies
TYL
+$171M
3
NVDA icon
NVIDIA
NVDA
+$167M
4
NOW icon
ServiceNow
NOW
+$128M
5
BFAM icon
Bright Horizons
BFAM
+$109M

Top Sells

Rank Stock Value
1
PD icon
PagerDuty
PD
+$171M
2
BLDR icon
Builders FirstSource
BLDR
+$157M
3
PYPL icon
PayPal
PYPL
+$135M
4
NATI
National Instruments Corp
NATI
+$122M
5
LECO icon
Lincoln Electric
LECO
+$116M

Sector Composition

Rank Sector Weight
1 Technology 25.63%
2 Industrials 16.13%
3 Healthcare 15.71%
4 Consumer Discretionary 14.7%
5 Financials 8.24%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
DXC icon
376
DXC Technology
DXC
$1.71B
$266K ﹤0.01%
9,942
+1,567
+19% +$39K
IVZ icon
377
Invesco
IVZ
$13.9B
$263K ﹤0.01%
15,626
-40
-0.3% -$644
HUN icon
378
Huntsman Corp
HUN
$1.78B
$256K ﹤0.01%
9,481
+265
+3% +$6.88K
CHKP icon
379
Check Point Software Technologies
CHKP
$13.2B
$254K ﹤0.01%
2,019
-5
-0.2% -$629
BC icon
380
Brunswick
BC
$5.21B
$248K ﹤0.01%
2,864
+86
+3% +$7.02K
TAP icon
381
Molson Coors Class B
TAP
$7.75B
$244K ﹤0.01%
3,712
-2,061
-36% -$127K
NVST icon
382
Envista
NVST
$4.61B
$243K ﹤0.01%
+7,191
New +$254K
WTW icon
383
Willis Towers Watson
WTW
$31.6B
$225K ﹤0.01%
954
– –
FFIV icon
384
F5
FFIV
$24B
$222K ﹤0.01%
1,518
-181
-11% -$25.7K
PPG icon
385
PPG Industries
PPG
$25.5B
$218K ﹤0.01%
+1,467
New +$205K
COR icon
386
Cencora
COR
$60B
$215K ﹤0.01%
+1,117
New +$193K
CPT icon
387
Camden Property Trust
CPT
$10.9B
$212K ﹤0.01%
1,943
-5
-0.3% -$539
KKR icon
388
KKR & Co
KKR
$99.5B
$205K ﹤0.01%
+3,665
New +$192K
SWKS icon
389
Skyworks Solutions
SWKS
$10.5B
$205K ﹤0.01%
+1,853
New +$196K
HIW icon
390
Highwoods Properties
HIW
$3.46B
$203K ﹤0.01%
+8,485
New +$188K
FLEX icon
391
Flex
FLEX
$46B
$203K ﹤0.01%
+9,734
New +$174K
HST icon
392
Host Hotels & Resorts
HST
$15.6B
$202K ﹤0.01%
12,017
-41
-0.3% -$687
VTRS icon
393
Viatris
VTRS
$18.5B
$196K ﹤0.01%
19,668
-49
-0.2% -$468
HBAN icon
394
Huntington Bancshares
HBAN
$36.1B
$138K ﹤0.01%
12,777
+1,841
+17% +$19.7K
EFA icon
395
iShares MSCI EAFE ETF
EFA
$80.2B
$39.9K ﹤0.01%
550
-332
-38% -$24.1K
A icon
396
Agilent Technologies
A
$41.9B
– –
-5,855
Closed -$810K
AAP icon
397
Advance Auto Parts
AAP
$3.23B
– –
-1,931
Closed -$235K
ADBE icon
398
Adobe
ADBE
$103B
– –
-296,026
Closed -$114M
AEIS icon
399
Advanced Energy
AEIS
$13.5B
– –
-309,260
Closed -$30.3M
ALGN icon
400
Align Technology
ALGN
$12.4B
– –
-1,460
Closed -$488K
14 15
16
17 18

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William Blair Investment Management's Q2 2023 Portfolio in Review

As of Q2 2023, William Blair Investment Management held 426 positions worth $31.2B, up 8.7% from $28.7B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

William Blair Investment Management's Q2 2023 filing shows 33 new, 232 increased, 127 reduced and 31 closed positions. Its largest new stake was Bio-Techne: 2,314,458 shares worth $189M. The largest sale was PagerDuty, an estimated $171M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Industrials and Healthcare.

  • William Blair Investment Management's largest Q2 2023 buy was Bio-Techne: 2,314,458 shares worth $189M.
  • William Blair Investment Management added most to NVIDIA in Q2 2023, an estimated $167M increase.
  • William Blair Investment Management's biggest Q2 2023 reduction was Builders FirstSource, cutting an estimated $157M.
  • William Blair Investment Management fully exited PagerDuty in Q2 2023, selling an estimated $171M.
  • William Blair Investment Management's ten largest holdings make up 20% of its $31.2B portfolio in Q2 2023.
  • William Blair Investment Management opened 33 new positions and closed 31 in Q2 2023.
  • William Blair Investment Management's portfolio value rose 8.7% quarter-over-quarter to $31.2B.

Based on William Blair Investment Management's 13F filing for Q2 2023, filed 11 Aug 2023.