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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
+771.69%
AUM
$25.2B
AUM Growth
+$541M
Cap. Flow
+$455M
Cap. Flow %
1.8%
Top 10 Hldgs %
14.45%
Holding
499
New
55
Increased
185
Reduced
203
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
TSM icon
1
TSMC
TSM
$2.1T
$591M 2.34%
22,560,776
-1,266,432
-5% -$29.6M
DG icon
2
Dollar General
DG
$28B
$425M 1.69%
4,969,333
+386,125
+8% +$29.2M
AMG icon
3
Affiliated Managers Group
AMG
$9.69B
$357M 1.42%
2,198,830
-113,785
-5% -$15.9M
SPY icon
4
State Street SPDR S&P 500 ETF Trust
SPY
$790B
$350M 1.39%
1,702,374
-776,588
-31% -$152M
IWD icon
5
iShares Russell 1000 Value ETF
IWD
$82.2B
$340M 1.35%
3,442,700
+202,400
+6% +$19M
ODFL icon
6
Old Dominion Freight Line
ODFL
$44.1B
$338M 1.34%
14,547,600
-1,015,842
-7% -$20.8M
BIDU icon
7
Baidu
BIDU
$37.7B
$323M 1.28%
1,694,628
+76,719
+5% +$13.1M
WP
8
DELISTED
Worldpay, Inc.
WP
$310M 1.23%
5,759,297
+53,178
+0.9% +$2.6M
MD icon
9
Pediatrix Medical
MD
$2.18B
$309M 1.22%
4,778,089
+1,170,129
+32% +$77.6M
GOOGL icon
10
Alphabet (Google) Class A
GOOGL
$4.36T
$301M 1.19%
7,881,900
+504,560
+7% +$18.6M
CSGP icon
11
CoStar Group
CSGP
$11.7B
$296M 1.17%
15,736,880
+2,042,480
+15% +$36.2M
TEVA icon
12
Teva Pharmaceuticals
TEVA
$40.8B
$274M 1.09%
5,127,907
-1,123,083
-18% -$65.9M
GWRE icon
13
Guidewire Software
GWRE
$12.6B
$269M 1.07%
4,944,041
-7,344
-0.1% -$384K
NXPI icon
14
NXP Semiconductors
NXPI
$57.8B
$262M 1.04%
3,237,330
+116
+0% +$8.65K
BN icon
15
Brookfield
BN
$104B
$262M 1.04%
21,416,395
-1,538,226
-7% -$16.6M
ABEV icon
16
Ambev
ABEV
$48.1B
$258M 1.02%
49,745,252
-1,277,235
-3% -$5.88M
ALGN icon
17
Align Technology
ALGN
$12.1B
$255M 1.01%
3,505,870
-520,494
-13% -$34.1M
CNC icon
18
Centene
CNC
$30.7B
$253M 1%
8,228,248
+3,983,966
+94% +$119M
AMZN icon
19
Amazon
AMZN
$2.92T
$248M 0.98%
8,342,380
+2,551,440
+44% +$72.4M
TDG icon
20
TransDigm Group
TDG
$70.2B
$242M 0.96%
1,098,239
+73,282
+7% +$16M
CHKP icon
21
Check Point Software Technologies
CHKP
$13B
$241M 0.96%
2,754,181
+1,029,551
+60% +$82.8M
ICE icon
22
Intercontinental Exchange
ICE
$85.6B
$240M 0.95%
5,096,685
-278,980
-5% -$13.6M
TD icon
23
Toronto Dominion Bank
TD
$198B
$239M 0.95%
5,521,752
+2,276,860
+70% +$87.9M
CERN
24
DELISTED
Cerner Corp
CERN
$235M 0.93%
4,431,187
+276,615
+7% +$15.1M
LQD icon
25
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$34.3B
$234M 0.93%
1,973,100
-371,800
-16% -$42.7M
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, 185 increased, 203 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.