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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
+13.65%
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
$25.7B
AUM Growth
+$1.1B
Cap. Flow
-$1.58B
Cap. Flow %
-6.14%
Top 10 Hldgs %
18.53%
Holding
367
New
26
Increased
146
Reduced
166
Closed
24

Top Buys

Rank Stock Value
1
AXON
Axon Enterprise
AXON
+$151M
2
RAMP icon
LiveRamp
RAMP
+$124M
3
GWRE icon
Guidewire Software
GWRE
+$115M
4
SE icon
Sea Limited
SE
+$102M
5
BLDR icon
Builders FirstSource
BLDR
+$89.9M

Top Sells

Rank Stock Value
1
NTES icon
NetEase
NTES
+$506M
2
CPRT icon
Copart
CPRT
+$136M
3
TSM icon
TSMC
TSM
+$125M
4
WEX icon
WEX
WEX
+$124M
5
BN icon
Brookfield
BN
+$123M

Sector Composition

Rank Sector Weight
1 Technology 26.05%
2 Healthcare 18.61%
3 Consumer Discretionary 13.78%
4 Industrials 13.27%
5 Financials 7.61%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NATI
76
DELISTED
National Instruments Corp
NATI
$130M 0.51%
3,654,336
-28,036
-0.8% -$1.02M
WOLF icon
77
Wolfspeed
WOLF
$1.65B
$129M 0.5%
2,022,938
-28,428
-1% -$1.84M
BURL icon
78
Burlington
BURL
$22.3B
$129M 0.5%
625,628
-351,824
-36% -$68.5M
FIS icon
79
Fidelity National Information Services
FIS
$21.6B
$126M 0.49%
852,821
-59,928
-7% -$8.66M
ZTS icon
80
Zoetis
ZTS
$30.4B
$123M 0.48%
741,232
-48,916
-6% -$7.52M
TME icon
81
Tencent Music
TME
$13.9B
$122M 0.48%
8,284,927
-145,385
-2% -$2.27M
CPRT icon
82
Copart
CPRT
$26.8B
$120M 0.47%
4,557,036
-5,599,300
-55% -$136M
HDB icon
83
HDFC Bank
HDB
$119B
$117M 0.46%
4,692,918
-162,700
-3% -$3.95M
ENTG icon
84
Entegris
ENTG
$24.6B
$117M 0.46%
1,576,144
-20,570
-1% -$1.38M
BN icon
85
Brookfield
BN
$110B
$112M 0.43%
6,304,433
-6,880,573
-52% -$123M
LECO icon
86
Lincoln Electric
LECO
$15.6B
$111M 0.43%
1,207,903
+38,645
+3% +$3.56M
BLDR icon
87
Builders FirstSource
BLDR
$7.79B
$108M 0.42%
+3,312,031
New +$89.9M
NOVT icon
88
Novanta
NOVT
$6.32B
$106M 0.41%
1,010,581
-10,920
-1% -$1.15M
EL icon
89
Estee Lauder
EL
$31.7B
$106M 0.41%
485,667
-2,739
-0.6% -$564K
MASI
90
DELISTED
Masimo
MASI
$105M 0.41%
445,188
-7,183
-2% -$1.61M
CSGP icon
91
CoStar Group
CSGP
$12.4B
$103M 0.4%
1,211,810
-89,140
-7% -$7.1M
MMS icon
92
Maximus
MMS
$2.85B
$102M 0.4%
1,486,403
-4,491
-0.3% -$330K
PFPT
93
DELISTED
Proofpoint, Inc.
PFPT
$100M 0.39%
948,472
-15,496
-2% -$1.73M
ICLR icon
94
Icon
ICLR
$12.9B
$97.4M 0.38%
509,484
-25,011
-5% -$4.6M
META icon
95
Meta Platforms (Facebook)
META
$1.47T
$94.8M 0.37%
362,126
-78,297
-18% -$20.2M
WDAY icon
96
Workday
WDAY
$43.3B
$91.7M 0.36%
426,410
-31,554
-7% -$6.24M
AMD icon
97
Advanced Micro Devices
AMD
$788B
$90.9M 0.35%
1,108,358
-112,265
-9% -$8.34M
TXN icon
98
Texas Instruments
TXN
$253B
$89.4M 0.35%
626,420
-10,958
-2% -$1.49M
HEI.A icon
99
HEICO Corp Class A
HEI.A
$38B
$84.7M 0.33%
955,270
-410,388
-30% -$34.6M
LW icon
100
Lamb Weston
LW
$7.3B
$82.9M 0.32%
1,251,286
-1,519,844
-55% -$97.3M
2 3
4
5 6

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William Blair Investment Management's Q3 2020 Portfolio in Review

As of Q3 2020, William Blair Investment Management held 367 positions worth $25.7B, up 4.5% from $24.6B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management withdrew a net $1.58B in Q3 2020, closing 24 positions and reducing 166 holdings. Its most notable exit was Planet Fitness, an estimated $114M position sold in full.

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

Against the trend, William Blair Investment Management opened a new position in Axon Enterprise worth $157M.

  • William Blair Investment Management's largest Q3 2020 buy was Axon Enterprise: 1,734,820 shares worth $157M.
  • William Blair Investment Management added most to LiveRamp in Q3 2020, an estimated $124M increase.
  • William Blair Investment Management's biggest Q3 2020 reduction was NetEase, cutting an estimated $506M.
  • William Blair Investment Management fully exited Planet Fitness in Q3 2020, selling an estimated $114M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $25.7B portfolio in Q3 2020.
  • William Blair Investment Management opened 26 new positions and closed 24 in Q3 2020.
  • William Blair Investment Management's portfolio value rose 4.5% quarter-over-quarter to $25.7B.

Based on William Blair Investment Management's 13F filing for Q3 2020, filed 6 Nov 2020.