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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
+5.95%
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
$26.2B
AUM Growth
+$458M
Cap. Flow
-$585M
Cap. Flow %
-2.23%
Top 10 Hldgs %
18.81%
Holding
469
New
42
Increased
160
Reduced
224
Closed
36

Top Buys

Rank Stock Value
1
HCSG icon
Healthcare Services Group
HCSG
+$169M
2
WP
Worldpay, Inc.
WP
+$159M
3
CTLT
CATALENT, INC.
CTLT
+$146M
4
PE
PARSLEY ENERGY INC
PE
+$136M
5
P
Everpure Inc
P
+$129M

Top Sells

Rank Stock Value
1
MMS icon
Maximus
MMS
+$224M
2
CNI icon
Canadian National Railway
CNI
+$212M
3
AMG icon
Affiliated Managers Group
AMG
+$199M
4
CSRA
CSRA Inc.
CSRA
+$167M
5
TTWO icon
Take-Two Interactive
TTWO
+$162M

Sector Composition

Rank Sector Weight
1 Technology 14.91%
2 Financials 14.73%
3 Consumer Discretionary 14.13%
4 Industrials 13.07%
5 Healthcare 12.8%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
WST icon
76
West Pharmaceutical
WST
$24.7B
$116M 0.44%
1,310,342
+37,935
+3% +$3.55M
SBAC icon
77
SBA Communications
SBAC
$19.3B
$115M 0.44%
671,781
-171,915
-20% -$28.5M
HTHT icon
78
Huazhu Hotels Group
HTHT
$12.8B
$112M 0.43%
3,413,500
-694,296
-17% -$25.4M
MXL icon
79
MaxLinear
MXL
$6.26B
$111M 0.42%
4,875,586
+73,464
+2% +$1.83M
RTN
80
DELISTED
Raytheon Company
RTN
$108M 0.41%
501,263
-28,219
-5% -$5.84M
SITE icon
81
SiteOne Landscape Supply
SITE
$4.32B
$107M 0.41%
1,384,866
+70,831
+5% +$5.22M
FTV icon
82
Fortive
FTV
$18.6B
$106M 0.41%
2,176,275
-107,222
-5% -$5.1M
CBM
83
DELISTED
Cambrex Corporation
CBM
$103M 0.39%
1,971,333
-381,699
-16% -$20.4M
YELP icon
84
Yelp
YELP
$1.28B
$103M 0.39%
2,459,435
-707,846
-22% -$30.8M
EEFT icon
85
Euronet Worldwide
EEFT
$2.64B
$101M 0.38%
1,274,275
+76,095
+6% +$6.7M
FSV icon
86
FirstService
FSV
$6.3B
$99.3M 0.38%
1,356,877
+61,763
+5% +$4.27M
GGAL icon
87
Galicia Financial Group
GGAL
$7.15B
$97.5M 0.37%
1,482,637
+626,327
+73% +$41.1M
ROST icon
88
Ross Stores
ROST
$80.8B
$95.7M 0.37%
1,227,549
-56,534
-4% -$4.49M
UEIC icon
89
Universal Electronics
UEIC
$74.6M
$93.7M 0.36%
1,801,123
+80,955
+5% +$3.94M
EFX icon
90
Equifax
EFX
$21.4B
$92.4M 0.35%
783,973
-32,925
-4% -$3.95M
RBA icon
91
RB Global
RBA
$16.6B
$91.7M 0.35%
+2,913,154
New +$92.8M
SCCO icon
92
Southern Copper
SCCO
$164B
$90.7M 0.35%
1,826,666
+534,079
+41% +$25M
SBUX icon
93
Starbucks
SBUX
$122B
$89.9M 0.34%
1,552,928
-321,689
-17% -$18.6M
ULTA icon
94
Ulta Beauty
ULTA
$23.3B
$89.5M 0.34%
438,303
+257,862
+143% +$55.8M
MNST icon
95
Monster Beverage
MNST
$89.2B
$88.8M 0.34%
6,210,236
+106,416
+2% +$1.66M
ULTI
96
DELISTED
Ultimate Software Group Inc
ULTI
$86.3M 0.33%
353,929
-24,563
-6% -$5.8M
GKOS icon
97
Glaukos
GKOS
$10.7B
$85.4M 0.33%
2,769,045
+789,085
+40% +$23.9M
ABEV icon
98
Ambev
ABEV
$43.9B
$83.1M 0.32%
11,424,123
-1,994,200
-15% -$13.7M
COHR
99
DELISTED
Coherent Inc
COHR
$82.9M 0.32%
442,317
+19,017
+4% +$4.59M
TREE icon
100
LendingTree
TREE
$443M
$80.3M 0.31%
+244,684
New +$88.1M
2 3
4
5 6

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William Blair Investment Management's Q1 2018 Portfolio in Review

As of Q1 2018, William Blair Investment Management held 469 positions worth $26.2B, up 1.8% from $25.7B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair Investment Management's Q1 2018 filing shows 42 new, 160 increased, 224 reduced and 36 closed positions. Its largest new stake was Healthcare Services Group: 3,458,904 shares worth $150M. The largest sale was Maximus, an estimated $224M.

By sector, the portfolio is most concentrated in Technology at 15% of assets, up from 14% a quarter earlier, followed by Financials and Consumer Discretionary.

  • William Blair Investment Management's largest Q1 2018 buy was Healthcare Services Group: 3,458,904 shares worth $150M.
  • William Blair Investment Management added most to PARSLEY ENERGY INC in Q1 2018, an estimated $136M increase.
  • William Blair Investment Management's biggest Q1 2018 reduction was Canadian National Railway, cutting an estimated $212M.
  • William Blair Investment Management fully exited Maximus in Q1 2018, selling an estimated $224M.
  • William Blair Investment Management's ten largest holdings make up 19% of its $26.2B portfolio in Q1 2018.
  • William Blair Investment Management opened 42 new positions and closed 36 in Q1 2018.
  • William Blair Investment Management's portfolio value rose 1.8% quarter-over-quarter to $26.2B.

Based on William Blair Investment Management's 13F filing for Q1 2018, filed 14 May 2018.