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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
-0.67%
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
$25.3B
AUM Growth
-$1.68B
Cap. Flow
-$904M
Cap. Flow %
-3.57%
Top 10 Hldgs %
17.26%
Holding
421
New
18
Increased
147
Reduced
220
Closed
34

Top Buys

Rank Stock Value
1
CP icon
Canadian Pacific Kansas City
CP
+$223M
2
EHC icon
Encompass Health
EHC
+$216M
3
FTI icon
TechnipFMC
FTI
+$115M
4
POOL icon
Pool Corp
POOL
+$110M
5
MLM icon
Martin Marietta Materials
MLM
+$75.9M

Top Sells

Rank Stock Value
1
CNI icon
Canadian National Railway
CNI
+$256M
2
TEAM icon
Atlassian
TEAM
+$172M
3
NVDA icon
NVIDIA
NVDA
+$133M
4
AVLR
Avalara, Inc.
AVLR
+$127M
5
WOOF icon
Petco
WOOF
+$112M

Sector Composition

Rank Sector Weight
1 Technology 22.56%
2 Healthcare 18.06%
3 Industrials 16.24%
4 Consumer Discretionary 13.94%
5 Financials 10.86%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
INSP icon
76
Inspire Medical Systems
INSP
$1.68B
$117M 0.46%
658,612
-5,779
-0.9% -$1.16M
HEI.A icon
77
HEICO Corp Class A
HEI.A
$38B
$116M 0.46%
1,015,598
+172,533
+20% +$20.8M
PODD icon
78
Insulet
PODD
$10.1B
$115M 0.46%
502,552
+432
+0.1% +$108K
APO icon
79
Apollo Global Management
APO
$81.9B
$115M 0.45%
2,464,944
+25,783
+1% +$1.42M
SHLS icon
80
Shoals Technologies Group
SHLS
$1.4B
$112M 0.44%
5,210,830
-182,239
-3% -$4.07M
BAP icon
81
Credicorp
BAP
$29.6B
$112M 0.44%
909,728
-184,864
-17% -$23.7M
RVLV icon
82
Revolve Group
RVLV
$1.69B
$108M 0.43%
4,999,829
-817,046
-14% -$21.5M
WOLF icon
83
Wolfspeed
WOLF
$1.65B
$106M 0.42%
1,029,724
-41,735
-4% -$4M
GMED icon
84
Globus Medical
GMED
$11.5B
$105M 0.42%
1,767,258
+32,463
+2% +$1.95M
RGEN icon
85
Repligen
RGEN
$9.35B
$102M 0.4%
547,384
-185,702
-25% -$39.2M
PD icon
86
PagerDuty
PD
$876M
$101M 0.4%
4,369,503
+37,000
+0.9% +$955K
RBA icon
87
RB Global
RBA
$16B
$101M 0.4%
1,611,528
+2,431
+0.2% +$165K
MAR icon
88
Marriott International
MAR
$92.5B
$98.7M 0.39%
704,534
-393,425
-36% -$60.1M
AZTA icon
89
Azenta
AZTA
$1.47B
$95.8M 0.38%
2,234,093
-983,770
-31% -$58.8M
VEEV icon
90
Veeva Systems
VEEV
$39.2B
$94.7M 0.37%
574,544
+301,383
+110% +$60.2M
ITUB icon
91
Itaú Unibanco
ITUB
$81.6B
$93.4M 0.37%
20,464,349
-4,252,892
-17% -$18.1M
CABO icon
92
Cable One
CABO
$191M
$88.8M 0.35%
104,115
+681
+0.7% +$840K
BURL icon
93
Burlington
BURL
$22.3B
$87.1M 0.34%
778,446
+62,460
+9% +$9.1M
CGNX icon
94
Cognex
CGNX
$10.2B
$86.2M 0.34%
2,078,506
+5,993
+0.3% +$271K
LECO icon
95
Lincoln Electric
LECO
$15.6B
$84.6M 0.33%
673,081
-472,775
-41% -$63.8M
TXN icon
96
Texas Instruments
TXN
$253B
$84.6M 0.33%
546,403
-94,283
-15% -$15.8M
INFY icon
97
Infosys
INFY
$49.7B
$82.8M 0.33%
4,880,952
-96,423
-2% -$1.8M
ADBE icon
98
Adobe
ADBE
$103B
$82.7M 0.33%
300,349
-122,115
-29% -$46.2M
COUP
99
DELISTED
Coupa Software Incorporated
COUP
$82.6M 0.33%
1,404,835
-146,154
-9% -$9.58M
MKSI icon
100
MKS Inc
MKSI
$20.7B
$78.7M 0.31%
951,727
-102,326
-10% -$10.5M
2 3
4
5 6

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William Blair Investment Management's Q3 2022 Portfolio in Review

As of Q3 2022, William Blair Investment Management held 421 positions worth $25.3B, down 6.2% from $27B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $904M in Q3 2022, closing 34 positions and reducing 220 holdings. Its most notable exit was Atlassian, an estimated $172M position sold in full.

By sector, the portfolio is most concentrated in Technology at 23% of assets, down from 25% a quarter earlier, followed by Healthcare and Industrials.

Against the trend, William Blair Investment Management opened a new position in Pioneer Natural Resource Co. worth $69.6M.

  • William Blair Investment Management's largest Q3 2022 buy was Pioneer Natural Resource Co.: 321,592 shares worth $69.6M.
  • William Blair Investment Management added most to Canadian Pacific Kansas City in Q3 2022, an estimated $223M increase.
  • William Blair Investment Management's biggest Q3 2022 reduction was Canadian National Railway, cutting an estimated $256M.
  • William Blair Investment Management fully exited Atlassian in Q3 2022, selling an estimated $172M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $25.3B portfolio in Q3 2022.
  • William Blair Investment Management opened 18 new positions and closed 34 in Q3 2022.
  • William Blair Investment Management's portfolio value fell 6.2% quarter-over-quarter to $25.3B.

Based on William Blair Investment Management's 13F filing for Q3 2022, filed 9 Nov 2022.