We are live on ! Find out more
William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $30.3B
1-Year Est. Return 33.75%
This Fund
S&P 500
This Quarter Est. Return
+1.57%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+788.31%
AUM
$23.4B
AUM Growth
-$452M
Cap. Flow
-$478M
Cap. Flow %
-2.05%
Top 10 Hldgs %
20.73%
Holding
398
New
26
Increased
153
Reduced
172
Closed
41

Top Buys

Rank Stock Value
1
IAA
IAA, Inc. Common Stock
IAA
+$134M
2
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$128M
3
WWE
World Wrestling Entertainment
WWE
+$112M
4
PFPT
Proofpoint, Inc.
PFPT
+$102M
5
PRSP
Perspecta Inc. Common Stock
PRSP
+$97.8M

Top Sells

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$201M
2
CSGP icon
CoStar Group
CSGP
+$173M
3
CPRT icon
Copart
CPRT
+$156M
4
GWR
Genesee & Wyoming Inc.
GWR
+$147M
5
DPZ icon
Domino's
DPZ
+$137M

Sector Composition

Rank Sector Weight
1 Technology 20.24%
2 Healthcare 13.8%
3 Consumer Discretionary 13.77%
4 Industrials 13.46%
5 Financials 13.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GLOB icon
76
Globant
GLOB
$1.68B
$104M 0.44%
1,132,738
-198,437
-15% -$19.7M
SITE icon
77
SiteOne Landscape Supply
SITE
$4.32B
$98.6M 0.42%
1,331,435
+9,034
+0.7% +$663K
NATI
78
DELISTED
National Instruments Corp
NATI
$97.4M 0.42%
2,319,202
+40,776
+2% +$1.75M
CTLT
79
DELISTED
CATALENT, INC.
CTLT
$97.3M 0.42%
2,042,550
-313,040
-13% -$16.8M
FIS icon
80
Fidelity National Information Services
FIS
$22.1B
$96.9M 0.41%
+730,246
New +$97M
ADBE icon
81
Adobe
ADBE
$105B
$94.5M 0.4%
341,990
-21,040
-6% -$6.14M
QLYS icon
82
Qualys
QLYS
$6.51B
$92.3M 0.39%
1,221,223
-44,594
-4% -$3.72M
AAP icon
83
Advance Auto Parts
AAP
$3.19B
$92M 0.39%
556,133
+349,319
+169% +$52.5M
PYPL icon
84
PayPal
PYPL
$50.5B
$91.7M 0.39%
885,385
+15,975
+2% +$1.76M
EL icon
85
Estee Lauder
EL
$31.8B
$89.1M 0.38%
447,781
-68,471
-13% -$13.1M
AXTA icon
86
Axalta
AXTA
$7.98B
$88.7M 0.38%
2,942,673
+59,502
+2% +$1.76M
HALO icon
87
Halozyme
HALO
$11.6B
$84M 0.36%
5,415,995
+1,877,068
+53% +$30.9M
CSGP icon
88
CoStar Group
CSGP
$12.6B
$81.5M 0.35%
1,373,960
-2,893,970
-68% -$173M
TME icon
89
Tencent Music
TME
$14.3B
$79.5M 0.34%
6,222,012
-242,953
-4% -$3.42M
CIGI icon
90
Colliers International
CIGI
$5.3B
$77.1M 0.33%
1,027,525
+27,476
+3% +$1.95M
ICLR icon
91
Icon
ICLR
$12.8B
$75.7M 0.32%
513,609
-12,104
-2% -$1.86M
JLL icon
92
Jones Lang LaSalle
JLL
$16.7B
$74.3M 0.32%
534,269
+11,144
+2% +$1.54M
NOVT icon
93
Novanta
NOVT
$6.34B
$73.3M 0.31%
897,403
+18,393
+2% +$1.49M
CRM icon
94
Salesforce
CRM
$162B
$71.7M 0.31%
482,925
+81,722
+20% +$12.4M
VCYT icon
95
Veracyte
VCYT
$3.73B
$70.3M 0.3%
2,927,695
+2,200,038
+302% +$58.5M
INSP icon
96
Inspire Medical Systems
INSP
$1.71B
$68.2M 0.29%
1,118,100
-42,780
-4% -$2.82M
IEMG icon
97
iShares Core MSCI Emerging Markets ETF
IEMG
$156B
$66.1M 0.28%
1,348,700
+50,750
+4% +$2.52M
PE
98
DELISTED
PARSLEY ENERGY INC
PE
$65.6M 0.28%
3,902,453
+145,016
+4% +$2.49M
META icon
99
Meta Platforms (Facebook)
META
$1.53T
$64.6M 0.28%
362,930
+1,613
+0.4% +$307K
UNP icon
100
Union Pacific
UNP
$174B
$64M 0.27%
395,341
+1,917
+0.5% +$322K
2 3
4
5 6

Similar funds

Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
Lord, Abbett & Co
Lord, Abbett & Co Jersey City, New Jersey $30.6B AUM 57.44% 1-Year Est. Return
Eagle Capital Management (New York)
Eagle Capital Management (New York) New York $29.8B AUM 12.13% 1-Year Est. Return
State of Tennessee, Department of Treasury
State of Tennessee, Department of Treasury Nashville, Tennessee $29.8B AUM 29.48% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Ohio Public Employees Retirement System (OPERS)
Ohio Public Employees Retirement System (OPERS) Columbus, Ohio $30.9B AUM 29.72% 1-Year Est. Return
Coatue Management
Coatue Management New York $29.1B AUM 96.54% 1-Year Est. Return
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $29B AUM 30.2% 1-Year Est. Return

William Blair Investment Management's Q3 2019 Portfolio in Review

As of Q3 2019, William Blair Investment Management held 398 positions worth $23.4B, down 1.9% from $23.8B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair Investment Management's Q3 2019 filing shows 26 new, 153 increased, 172 reduced and 41 closed positions. Its largest new stake was IAA, Inc. Common Stock: 2,969,390 shares worth $124M. The largest sale was Rogers Communications, an estimated $201M.

By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 18% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q3 2019 buy was IAA, Inc. Common Stock: 2,969,390 shares worth $124M.
  • William Blair Investment Management added most to State Street SPDR S&P 500 ETF Trust in Q3 2019, an estimated $128M increase.
  • William Blair Investment Management's biggest Q3 2019 reduction was CoStar Group, cutting an estimated $173M.
  • William Blair Investment Management fully exited Rogers Communications in Q3 2019, selling an estimated $201M.
  • William Blair Investment Management's ten largest holdings make up 21% of its $23.4B portfolio in Q3 2019.
  • William Blair Investment Management opened 26 new positions and closed 41 in Q3 2019.
  • William Blair Investment Management's portfolio value fell 1.9% quarter-over-quarter to $23.4B.

Based on William Blair Investment Management's 13F filing for Q3 2019, filed 12 Nov 2019.