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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
+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
ZD icon
26
Ziff Davis
ZD
$1.99B
$221M 0.94%
2,795,980
+744,919
+36% +$56.4M
P
27
Everpure Inc
P
$34.5B
$218M 0.93%
12,895,124
+456,953
+4% +$7.17M
SABR icon
28
Sabre
SABR
$843M
$205M 0.88%
9,136,130
+1,738,048
+23% +$40.9M
AMZN icon
29
Amazon
AMZN
$2.94T
$201M 0.86%
2,321,520
-34,580
-1% -$3.21M
CCK icon
30
Crown Holdings
CCK
$13.2B
$200M 0.86%
3,026,660
+1,503,614
+99% +$96.3M
AZPN
31
DELISTED
ASPEN TECHNOLOGY INC
AZPN
$196M 0.84%
1,594,358
+32,171
+2% +$3.96M
BAH icon
32
Booz Allen Hamilton
BAH
$9.57B
$196M 0.84%
2,753,242
-667,251
-20% -$47.2M
GOOGL icon
33
Alphabet (Google) Class A
GOOGL
$4.31T
$190M 0.81%
3,114,420
-38,760
-1% -$2.3M
BCO icon
34
Brink's
BCO
$4.69B
$186M 0.8%
2,243,641
+574,720
+34% +$47.9M
PTLA
35
DELISTED
Portola Pharmaceuticals, Inc.
PTLA
$184M 0.79%
6,858,941
+1,861,717
+37% +$52.3M
NICE icon
36
Nice
NICE
$6.01B
$182M 0.78%
1,265,910
-85,910
-6% -$12.8M
CHKP icon
37
Check Point Software Technologies
CHKP
$13.2B
$181M 0.78%
1,655,453
+39,760
+2% +$4.43M
FCFS icon
38
FirstCash
FCFS
$9.05B
$178M 0.76%
1,941,499
+52,730
+3% +$5.24M
GDDY icon
39
GoDaddy
GDDY
$11.6B
$175M 0.75%
2,659,484
+376,642
+16% +$25.5M
WEX icon
40
WEX
WEX
$6.42B
$175M 0.75%
865,108
+9,894
+1% +$2.05M
GWRE icon
41
Guidewire Software
GWRE
$14.7B
$172M 0.73%
1,628,835
-20,309
-1% -$2.05M
MIDD icon
42
Middleby
MIDD
$5.63B
$168M 0.72%
1,438,069
-58,429
-4% -$7.17M
CABO icon
43
Cable One
CABO
$203M
$164M 0.7%
131,105
-1,656
-1% -$2.06M
CVSA
44
Covista Inc
CVSA
$4.45B
$163M 0.7%
4,274,240
-423,078
-9% -$19M
HDB icon
45
HDFC Bank
HDB
$121B
$162M 0.69%
5,663,736
-376,872
-6% -$10.7M
PEN icon
46
Penumbra
PEN
$12.9B
$158M 0.67%
1,172,792
+214,195
+22% +$33.1M
BAP icon
47
Credicorp
BAP
$30.3B
$157M 0.67%
754,039
-133,534
-15% -$28.9M
EWBC icon
48
East-West Bancorp
EWBC
$18.1B
$155M 0.66%
3,508,000
-227,441
-6% -$9.99M
HTHT icon
49
Huazhu Hotels Group
HTHT
$12.8B
$153M 0.65%
4,623,332
-71,945
-2% -$2.42M
STE icon
50
Steris
STE
$23.4B
$151M 0.65%
1,048,061
+19,352
+2% +$2.89M
1
2
3 4 5

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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.