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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+1.38%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
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
DEO icon
301
Diageo
DEO
$51.8B
$7.51M 0.03%
69,648
+11,064
+19% +$1.17M
HLX icon
302
Helix Energy Solutions
HLX
$1.49B
$7.43M 0.03%
1,327,348
-15,720
-1% -$66.3K
IGIB icon
303
iShares 5-10 Year Investment Grade Corporate Bond ETF
IGIB
$18.5B
$7.42M 0.03%
135,200
+2,600
+2% +$140K
ENV
304
DELISTED
ENVESTNET, INC.
ENV
$7.29M 0.03%
+268,031
New +$6.29M
BUD icon
305
AB InBev
BUD
$155B
$7.02M 0.03%
56,349
+16,094
+40% +$1.91M
ATRC icon
306
AtriCure
ATRC
$2.16B
$6.93M 0.03%
412,038
+31,630
+8% +$556K
LMAT icon
307
LeMaitre Vascular
LMAT
$1.86B
$6.93M 0.03%
446,716
+30,527
+7% +$438K
SIMO icon
308
Silicon Motion
SIMO
$8.05B
$6.82M 0.03%
+175,698
New +$5.67M
AXDX
309
DELISTED
Accelerate Diagnostics
AXDX
$6.77M 0.03%
47,121
+13,686
+41% +$1.93M
NTRI
310
DELISTED
NutriSystem, Inc.
NTRI
$6.66M 0.03%
+319,301
New +$6.31M
AX icon
311
Axos Financial
AX
$5.68B
$6.52M 0.03%
305,556
-38,915
-11% -$705K
FIVE icon
312
Five Below
FIVE
$12.9B
$6.41M 0.03%
154,996
-2,414
-2% -$88.2K
XTLY
313
DELISTED
Xactly Corporation
XTLY
$6.41M 0.03%
935,133
+406,186
+77% +$2.61M
COWN
314
DELISTED
Cowen Inc. Class A Common Stock
COWN
$6.26M 0.02%
410,972
+28,211
+7% +$370K
IX icon
315
ORIX
IX
$43.8B
$6.03M 0.02%
422,360
-3,920
-0.9% -$53.4K
EWX icon
316
State Street SPDR S&P Emerging Markets Small Cap ETF
EWX
$704M
$6M 0.02%
154,300
-332,600
-68% -$12M
NWPX icon
317
NWPX Infrastructure Inc
NWPX
$1.1B
$5.82M 0.02%
631,677
-4,748
-0.7% -$43.8K
TTEC icon
318
TTEC Holdings
TTEC
$81.8M
$5.69M 0.02%
204,912
+8,910
+5% +$239K
HEI icon
319
HEICO Corp
HEI
$51.1B
$5.68M 0.02%
+230,520
New +$5.3M
FMS icon
320
Fresenius Medical Care
FMS
$12.6B
$5.58M 0.02%
126,646
+591
+0.5% +$25K
AXA
321
DELISTED
AXA ADS (1 ORD SHS)
AXA
$5.49M 0.02%
234,429
-2,159
-0.9% -$50.5K
OTEX icon
322
Open Text
OTEX
$5.68B
$5.35M 0.02%
+205,694
New +$4.96M
RDS.A
323
DELISTED
Royal Dutch Shell PLC ADS Class A
RDS.A
$5.3M 0.02%
115,398
+1,131
+1% +$47.9K
WPP icon
324
WPP
WPP
$5.74B
$5.3M 0.02%
45,507
-372
-0.8% -$40.1K
ILG
325
DELISTED
ILG, Inc Common Stock
ILG
$5.2M 0.02%
359,780
+22,078
+7% +$286K
11 12
13
14 15

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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.