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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
+9.46%
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
$25.1B
AUM Growth
+$1.71B
Cap. Flow
-$116M
Cap. Flow %
-0.46%
Top 10 Hldgs %
21.8%
Holding
389
New
32
Increased
133
Reduced
187
Closed
33

Top Buys

Rank Stock Value
1
ZNGA
ZYNGA INC. CL A COMMON
ZNGA
+$140M
2
OLLI icon
Ollie's Bargain Outlet
OLLI
+$120M
3
PLNT icon
Planet Fitness
PLNT
+$101M
4
ETSY icon
Etsy
ETSY
+$98.5M
5
IRTC icon
iRhythm Holdings
IRTC
+$83.7M

Top Sells

Rank Stock Value
1
CVSA
Covista Inc
CVSA
+$163M
2
EWBC icon
East-West Bancorp
EWBC
+$155M
3
MIDD icon
Middleby
MIDD
+$155M
4
IAA
IAA, Inc. Common Stock
IAA
+$124M
5
CBOE icon
Cboe Global Markets
CBOE
+$98.6M

Sector Composition

Rank Sector Weight
1 Technology 22.67%
2 Healthcare 14.68%
3 Consumer Discretionary 14.55%
4 Industrials 12.39%
5 Financials 11.76%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TME icon
101
Tencent Music
TME
$14.4B
$79.1M 0.32%
6,737,913
+515,901
+8% +$6.63M
CSGP icon
102
CoStar Group
CSGP
$12.7B
$77M 0.31%
1,287,060
-86,900
-6% -$5.07M
META icon
103
Meta Platforms (Facebook)
META
$1.54T
$73.9M 0.29%
360,107
-2,823
-0.8% -$547K
JPM icon
104
JPMorgan Chase
JPM
$964B
$73.2M 0.29%
524,752
+5,146
+1% +$660K
UNP icon
105
Union Pacific
UNP
$174B
$70.9M 0.28%
392,265
-3,076
-0.8% -$527K
FTV icon
106
Fortive
FTV
$18.7B
$67.9M 0.27%
1,409,874
+838,566
+147% +$37.9M
KO icon
107
Coca-Cola
KO
$373B
$66.8M 0.27%
1,206,858
+228,370
+23% +$12.3M
ULTA icon
108
Ulta Beauty
ULTA
$23.3B
$64.8M 0.26%
256,131
+28,539
+13% +$6.97M
TMO icon
109
Thermo Fisher Scientific
TMO
$223B
$64.8M 0.26%
199,482
+2,730
+1% +$828K
TXN icon
110
Texas Instruments
TXN
$257B
$63M 0.25%
491,272
+87,182
+22% +$10.8M
IEMG icon
111
iShares Core MSCI Emerging Markets ETF
IEMG
$156B
$62.5M 0.25%
1,163,200
-185,500
-14% -$9.56M
BLK icon
112
Blackrock
BLK
$178B
$61.7M 0.25%
122,786
-961
-0.8% -$456K
ACN icon
113
Accenture
ACN
$109B
$61.7M 0.25%
293,098
+24,199
+9% +$4.72M
ROP icon
114
Roper Technologies
ROP
$39.6B
$59.5M 0.24%
168,021
-5,266
-3% -$1.82M
MELI icon
115
Mercado Libre
MELI
$98B
$58.2M 0.23%
101,728
-3,005
-3% -$1.66M
NEE icon
116
NextEra Energy
NEE
$179B
$57.3M 0.23%
946,360
+13,020
+1% +$760K
ENTG icon
117
Entegris
ENTG
$22.8B
$56.5M 0.23%
+1,127,147
New +$54.3M
APTV icon
118
Aptiv
APTV
$10.4B
$55.5M 0.22%
584,459
-7,108
-1% -$651K
ABT icon
119
Abbott
ABT
$190B
$55.2M 0.22%
635,498
+178,020
+39% +$14.9M
SBUX icon
120
Starbucks
SBUX
$121B
$52.9M 0.21%
601,704
+283,256
+89% +$24.2M
EW icon
121
Edwards Lifesciences
EW
$53.9B
$52.9M 0.21%
+680,013
New +$53.1M
VEEV icon
122
Veeva Systems
VEEV
$38.5B
$52.5M 0.21%
373,185
-39,009
-9% -$5.73M
ATVI
123
DELISTED
Activision Blizzard
ATVI
$51.4M 0.2%
865,514
+106,417
+14% +$5.89M
LMT icon
124
Lockheed Martin
LMT
$137B
$50.3M 0.2%
129,073
+1,196
+0.9% +$459K
WIX icon
125
WIX.com
WIX
$2.76B
$47.5M 0.19%
387,917
-9,873
-2% -$1.21M
3 4
5
6 7

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William Blair Investment Management's Q4 2019 Portfolio in Review

As of Q4 2019, William Blair Investment Management held 389 positions worth $25.1B, up 7.3% from $23.4B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair Investment Management's Q4 2019 filing shows 32 new, 133 increased, 187 reduced and 33 closed positions. Its largest new stake was Ollie's Bargain Outlet: 1,892,527 shares worth $124M. The largest sale was Covista Inc, an estimated $163M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q4 2019 buy was Ollie's Bargain Outlet: 1,892,527 shares worth $124M.
  • William Blair Investment Management added most to ZYNGA INC. CL A COMMON in Q4 2019, an estimated $140M increase.
  • William Blair Investment Management's biggest Q4 2019 reduction was Middleby, cutting an estimated $155M.
  • William Blair Investment Management fully exited Covista Inc in Q4 2019, selling an estimated $163M.
  • William Blair Investment Management's ten largest holdings make up 22% of its $25.1B portfolio in Q4 2019.
  • William Blair Investment Management opened 32 new positions and closed 33 in Q4 2019.
  • William Blair Investment Management's portfolio value rose 7.3% quarter-over-quarter to $25.1B.

Based on William Blair Investment Management's 13F filing for Q4 2019, filed 12 Feb 2020.