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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
UNH icon
126
UnitedHealth
UNH
$365B
$59.3M 0.24%
459,832
+187,253
+69% +$22.2M
SRCL
127
DELISTED
Stericycle Inc
SRCL
$56.2M 0.22%
445,145
+5,357
+1% +$624K
XLP icon
128
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.6B
$55.6M 0.22%
1,047,600
+779,100
+290% +$39.6M
TWOU
129
DELISTED
2U Inc
TWOU
$55.3M 0.22%
81,562
+10,204
+14% +$6.47M
BSAC icon
130
Banco Santander Chile
BSAC
$16.5B
$52.6M 0.21%
2,720,565
-58,663
-2% -$1.04M
GE icon
131
GE Aerospace
GE
$382B
$52.6M 0.21%
345,525
+22,484
+7% +$3.18M
VIRT icon
132
Virtu Financial
VIRT
$4.86B
$51.4M 0.2%
2,326,270
+51,700
+2% +$1.14M
ECPG icon
133
Encore Capital Group
ECPG
$1.98B
$49.4M 0.2%
1,918,275
-1,075,332
-36% -$24.8M
XLE icon
134
State Street Energy Select Sector SPDR ETF
XLE
$39.8B
$47.4M 0.19%
1,530,800
+939,400
+159% +$27.3M
AAMI
135
Acadian Asset Management
AAMI
$3.25B
$46.4M 0.18%
3,476,045
-89,336
-3% -$1.07M
IWF icon
136
iShares Russell 1000 Growth ETF
IWF
$127B
$45.7M 0.18%
1,833,600
+80,192
+5% +$1.89M
CIGI icon
137
Colliers International
CIGI
$5.3B
$45.4M 0.18%
1,199,208
-314,362
-21% -$11.6M
AVGO icon
138
Broadcom
AVGO
$1.98T
$44.3M 0.18%
+2,867,840
New +$38.8M
TAL icon
139
TAL Education Group
TAL
$6.75B
$41.5M 0.16%
5,008,032
+2,790,858
+126% +$22.3M
RAMP icon
140
LiveRamp
RAMP
$2.3B
$41.2M 0.16%
1,923,559
+67,838
+4% +$1.35M
FAST icon
141
Fastenal
FAST
$60.1B
$40.7M 0.16%
+3,323,084
New +$36.1M
EL icon
142
Estee Lauder
EL
$31.8B
$40.1M 0.16%
425,263
+153,279
+56% +$13.7M
AMED
143
DELISTED
Amedisys
AMED
$39.3M 0.16%
+813,340
New +$31.4M
CPA icon
144
Copa Holdings
CPA
$5.49B
$38.6M 0.15%
569,615
+546,958
+2,414% +$30.7M
CRZO
145
DELISTED
Carrizo Oil & Gas Inc
CRZO
$38.5M 0.15%
1,246,197
+83,374
+7% +$2.1M
TTM
146
DELISTED
Tata Motors Limited
TTM
$38.4M 0.15%
1,321,704
+1,102
+0.1% +$27.8K
SHW icon
147
Sherwin-Williams
SHW
$88.5B
$37.4M 0.15%
393,783
+28,257
+8% +$2.47M
ASR icon
148
Grupo Aeroportuario del Sureste
ASR
$8.15B
$35.4M 0.14%
235,631
-33,359
-12% -$4.56M
CXO
149
DELISTED
CONCHO RESOURCES INC.
CXO
$35M 0.14%
345,904
-97,834
-22% -$8.99M
SHPG
150
DELISTED
Shire pic
SHPG
$33.9M 0.13%
197,277
+1,095
+0.6% +$183K
4 5
6
7 8

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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.