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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
SIX
26
DELISTED
Six Flags Entertainment Corp.
SIX
$232M 0.92%
4,186,969
+82,246
+2% +$4.24M
BABA icon
27
Alibaba
BABA
$317B
$226M 0.9%
2,858,241
-921,879
-24% -$64.9M
SBAC icon
28
SBA Communications
SBAC
$19.2B
$221M 0.88%
2,210,743
+11,919
+0.5% +$1.14M
NWL icon
29
Newell Brands
NWL
$2.51B
$220M 0.87%
4,977,620
+810,000
+19% +$31.8M
SBNY
30
DELISTED
Signature Bank
SBNY
$220M 0.87%
1,616,980
-92,882
-5% -$12.7M
MCO icon
31
Moody's
MCO
$82.8B
$216M 0.86%
2,241,719
-376,681
-14% -$33.9M
MA icon
32
Mastercard
MA
$493B
$211M 0.84%
2,233,185
-285,452
-11% -$25.2M
MSFT icon
33
Microsoft
MSFT
$3.76T
$210M 0.83%
3,803,585
+2,274,329
+149% +$119M
MTD icon
34
Mettler-Toledo International
MTD
$28.6B
$208M 0.83%
604,298
-25,689
-4% -$8.27M
WTW icon
35
Willis Towers Watson
WTW
$31.9B
$207M 0.82%
+1,741,517
New +$201M
AKAM icon
36
Akamai
AKAM
$16.9B
$206M 0.82%
3,700,267
+2,464,063
+199% +$125M
NTES icon
37
NetEase
NTES
$85.4B
$203M 0.8%
7,059,250
+294,105
+4% +$8.81M
BMY icon
38
Bristol-Myers Squibb
BMY
$132B
$202M 0.8%
3,169,317
+39,611
+1% +$2.5M
META icon
39
Meta Platforms (Facebook)
META
$1.52T
$202M 0.8%
1,767,766
+193,090
+12% +$20.4M
IDXX icon
40
Idexx Laboratories
IDXX
$46.9B
$201M 0.79%
2,560,522
+109,665
+4% +$7.9M
RHT
41
DELISTED
Red Hat Inc
RHT
$199M 0.79%
2,669,809
-944,516
-26% -$66.6M
BAH icon
42
Booz Allen Hamilton
BAH
$9.37B
$197M 0.78%
6,519,448
+918,010
+16% +$26.2M
SBH icon
43
Sally Beauty Holdings
SBH
$1.57B
$191M 0.76%
5,896,681
-354,840
-6% -$10.5M
SU icon
44
Suncor Energy
SU
$73.4B
$190M 0.75%
6,804,581
-1,275,458
-16% -$30.9M
BAP icon
45
Credicorp
BAP
$30.4B
$189M 0.75%
1,443,089
+249,245
+21% +$27.5M
COL
46
DELISTED
Rockwell Collins
COL
$189M 0.75%
2,046,453
-53,587
-3% -$4.65M
MMS icon
47
Maximus
MMS
$2.9B
$187M 0.74%
3,557,901
+902,847
+34% +$46M
BALL icon
48
Ball Corp
BALL
$16.6B
$182M 0.72%
5,118,950
+3,643,026
+247% +$124M
XRAY icon
49
Dentsply Sirona
XRAY
$2.34B
$180M 0.71%
+2,919,468
New +$172M
HD icon
50
Home Depot
HD
$350B
$177M 0.7%
1,325,050
+278,605
+27% +$34.7M
1
2
3 4 5

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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.