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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
CCK icon
26
Crown Holdings
CCK
$13.1B
$224M 0.89%
3,083,877
+57,217
+2% +$4.08M
TRU icon
27
TransUnion
TRU
$15.2B
$218M 0.87%
2,547,939
-540,939
-18% -$45.1M
BJ icon
28
BJs Wholesale Club
BJ
$12.3B
$216M 0.86%
9,485,284
+750,220
+9% +$18.5M
BCO icon
29
Brink's
BCO
$4.55B
$209M 0.83%
2,306,054
+62,413
+3% +$5.51M
SABR icon
30
Sabre
SABR
$835M
$207M 0.83%
9,242,665
+106,535
+1% +$2.36M
PEN icon
31
Penumbra
PEN
$12.8B
$200M 0.8%
1,218,187
+45,395
+4% +$7.22M
CPRT icon
32
Copart
CPRT
$27.4B
$198M 0.79%
8,712,700
-4,281,568
-33% -$91.4M
NICE icon
33
Nice
NICE
$6.01B
$196M 0.78%
1,265,793
-117
-0% -$17.9K
CABO icon
34
Cable One
CABO
$203M
$194M 0.77%
130,333
-772
-0.6% -$1.09M
BAH icon
35
Booz Allen Hamilton
BAH
$9.37B
$193M 0.77%
2,714,905
-38,337
-1% -$2.73M
MSFT icon
36
Microsoft
MSFT
$3.76T
$191M 0.76%
1,211,015
+146,867
+14% +$21.6M
UNH icon
37
UnitedHealth
UNH
$371B
$189M 0.75%
642,436
+39,079
+6% +$10.2M
GDDY icon
38
GoDaddy
GDDY
$11.6B
$185M 0.74%
2,729,626
+70,142
+3% +$4.64M
GWRE icon
39
Guidewire Software
GWRE
$14.4B
$184M 0.73%
1,676,665
+47,830
+3% +$5.35M
HTHT icon
40
Huazhu Hotels Group
HTHT
$13.2B
$182M 0.73%
4,550,094
-73,238
-2% -$2.64M
CHKP icon
41
Check Point Software Technologies
CHKP
$13.4B
$182M 0.73%
1,641,564
-13,889
-0.8% -$1.56M
WEX icon
42
WEX
WEX
$6.35B
$182M 0.73%
869,277
+4,169
+0.5% +$836K
AZPN
43
DELISTED
ASPEN TECHNOLOGY INC
AZPN
$181M 0.72%
1,495,493
-98,865
-6% -$12M
AMED
44
DELISTED
Amedisys
AMED
$179M 0.71%
1,070,154
+57,572
+6% +$8.56M
PTLA
45
DELISTED
Portola Pharmaceuticals, Inc.
PTLA
$173M 0.69%
7,249,072
+390,131
+6% +$10.8M
HDB icon
46
HDFC Bank
HDB
$120B
$168M 0.67%
5,293,490
-370,246
-7% -$11.3M
MA icon
47
Mastercard
MA
$493B
$165M 0.66%
551,433
+18,099
+3% +$5.1M
FCFS icon
48
FirstCash
FCFS
$9.05B
$164M 0.66%
2,038,996
+97,497
+5% +$8.19M
STE icon
49
Steris
STE
$23.3B
$163M 0.65%
1,068,697
+20,636
+2% +$3.02M
RBA icon
50
RB Global
RBA
$17.4B
$156M 0.62%
3,638,033
+167,466
+5% +$6.97M
1
2
3 4 5

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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.