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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
+1.38%
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
$25.2B
AUM Growth
+$541M
Cap. Flow
+$455M
Cap. Flow %
1.8%
Top 10 Hldgs %
14.45%
Holding
499
New
55
Increased
184
Reduced
204
Closed
49

Top Buys

Rank Stock Value
1
WTW icon
Willis Towers Watson
WTW
+$201M
2
XRAY icon
Dentsply Sirona
XRAY
+$172M
3
CSRA
CSRA Inc.
CSRA
+$164M
4
ZTS icon
Zoetis
ZTS
+$137M
5
AKAM icon
Akamai
AKAM
+$125M

Top Sells

Rank Stock Value
1
SIRO
SIRONA DENTAL SYSTEMS INC COM STK
SIRO
+$199M
2
TW
TOWERS WATSON & CO COM STK CL A (DE)
TW
+$169M
3
PII icon
Polaris
PII
+$169M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$152M
5
MDVN
MEDIVATION, INC.
MDVN
+$151M

Sector Composition

Rank Sector Weight
1 Healthcare 14.5%
2 Financials 12.48%
3 Technology 11.87%
4 Consumer Discretionary 11.84%
5 Industrials 11.39%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SLB icon
76
SLB Ltd
SLB
$79.5B
$121M 0.48%
1,634,767
+100,184
+7% +$7.05M
COST icon
77
Costco
COST
$419B
$121M 0.48%
764,791
+113,047
+17% +$17.1M
GOOG icon
78
Alphabet (Google) Class C
GOOG
$4.19T
$117M 0.46%
3,129,700
-203,100
-6% -$7.28M
BC icon
79
Brunswick
BC
$5.27B
$117M 0.46%
2,428,918
-1,520,535
-38% -$65.8M
JAH
80
DELISTED
JARDEN CORPORATION
JAH
$115M 0.46%
1,952,921
+144,451
+8% +$7.73M
CBOE icon
81
Cboe Global Markets
CBOE
$29.5B
$109M 0.43%
1,671,177
+19,100
+1% +$1.22M
FSV icon
82
FirstService
FSV
$6.31B
$108M 0.43%
2,648,230
-148,342
-5% -$5.63M
FMX icon
83
Fomento Económico Mexicano
FMX
$40.3B
$107M 0.42%
1,113,076
-91,753
-8% -$8.38M
VFC icon
84
VF Corp
VFC
$5.81B
$104M 0.41%
1,709,048
+37,255
+2% +$2.16M
ADBE icon
85
Adobe
ADBE
$105B
$102M 0.4%
1,084,989
+176,361
+19% +$15.3M
PRGO icon
86
Perrigo
PRGO
$1.77B
$97.1M 0.38%
758,909
-20,068
-3% -$2.74M
WDFC icon
87
WD-40
WDFC
$3.13B
$97.1M 0.38%
898,688
+20,282
+2% +$2.1M
BIIB icon
88
Biogen
BIIB
$30.2B
$96.7M 0.38%
371,446
+55,652
+18% +$14.7M
IFF icon
89
International Flavors & Fragrances
IFF
$21.7B
$96.6M 0.38%
849,398
+9,603
+1% +$1.07M
VMC icon
90
Vulcan Materials
VMC
$37.3B
$96.3M 0.38%
912,073
-323,319
-26% -$30.6M
JLL icon
91
Jones Lang LaSalle
JLL
$16.7B
$93.9M 0.37%
800,470
+22,973
+3% +$2.78M
CEB
92
DELISTED
CEB Inc.
CEB
$92M 0.36%
1,421,953
+121,574
+9% +$6.96M
IQV icon
93
IQVIA
IQV
$40.2B
$91.2M 0.36%
1,400,699
+100,692
+8% +$6.37M
IT icon
94
Gartner
IT
$11.8B
$90.7M 0.36%
1,014,781
+11,634
+1% +$983K
HCSG icon
95
Healthcare Services Group
HCSG
$1.44B
$88.4M 0.35%
2,402,824
+53,363
+2% +$1.85M
JNK icon
96
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.3B
$86.8M 0.34%
844,333
+41,033
+5% +$4.09M
RYAAY icon
97
Ryanair
RYAAY
$30.8B
$86.6M 0.34%
2,522,180
+40,157
+2% +$1.32M
CMG icon
98
Chipotle Mexican Grill
CMG
$40.5B
$85.8M 0.34%
9,110,950
+4,695,250
+106% +$44.7M
CBM
99
DELISTED
Cambrex Corporation
CBM
$85.1M 0.34%
1,933,212
+137,406
+8% +$5.42M
NSR
100
DELISTED
Neustar Inc
NSR
$83.7M 0.33%
3,404,360
-1,994,166
-37% -$47.7M
2 3
4
5 6

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William Blair Investment Management's Q1 2016 Portfolio in Review

As of Q1 2016, William Blair Investment Management held 499 positions worth $25.2B, up 2.2% from $24.7B the previous quarter. Its ten largest holdings account for 14% of the portfolio.

William Blair Investment Management's Q1 2016 filing shows 55 new, 184 increased, 204 reduced and 49 closed positions. Its largest new stake was Willis Towers Watson: 1,741,517 shares worth $207M. The largest sale was SIRONA DENTAL SYSTEMS INC COM STK, an estimated $199M.

By sector, the portfolio is most concentrated in Healthcare at 14% of assets, up from 13% a quarter earlier, followed by Financials and Technology.

  • William Blair Investment Management's largest Q1 2016 buy was Willis Towers Watson: 1,741,517 shares worth $207M.
  • William Blair Investment Management added most to Zoetis in Q1 2016, an estimated $137M increase.
  • William Blair Investment Management's biggest Q1 2016 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $152M.
  • William Blair Investment Management fully exited SIRONA DENTAL SYSTEMS INC COM STK in Q1 2016, selling an estimated $199M.
  • William Blair Investment Management's ten largest holdings make up 14% of its $25.2B portfolio in Q1 2016.
  • William Blair Investment Management opened 55 new positions and closed 49 in Q1 2016.
  • William Blair Investment Management's portfolio value rose 2.2% quarter-over-quarter to $25.2B.

Based on William Blair Investment Management's 13F filing for Q1 2016, filed 16 May 2016.