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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
GPX
276
DELISTED
GP Strategies Corp.
GPX
$10M 0.04%
365,192
+23,719
+7% +$578K
SFE
277
DELISTED
Safeguard Scientifics, Inc.
SFE
$9.86M 0.04%
743,940
-5,718
-0.8% -$72K
FC icon
278
Franklin Covey
FC
$235M
$9.83M 0.04%
558,959
+38,549
+7% +$658K
BPFH
279
DELISTED
Boston Private Financial Holdings, Inc.
BPFH
$9.4M 0.04%
821,417
+28,033
+4% +$296K
CALD
280
DELISTED
Callidus Software, Inc.
CALD
$9.32M 0.04%
559,041
-253,166
-31% -$3.75M
HLF icon
281
Herbalife
HLF
$1.23B
$9.3M 0.04%
302,160
+121,060
+67% +$3.12M
NOAH
282
Noah Holdings
NOAH
$591M
$9.24M 0.04%
371,379
-37,595
-9% -$919K
SWC
283
DELISTED
Stillwater Mining Co
SWC
$9.2M 0.04%
863,627
+59,244
+7% +$474K
VLRS
284
Controladora Vuela Compania de Aviacion
VLRS
$907M
$9.17M 0.04%
435,129
-2,711
-0.6% -$49.9K
UN
285
DELISTED
Unilever NV New York Registry Shares
UN
$9.14M 0.04%
204,643
+26,331
+15% +$1.13M
NXTM
286
DELISTED
NxStage Medical Inc.
NXTM
$8.94M 0.04%
596,501
+42,953
+8% +$720K
JBTM
287
JBT Marel
JBTM
$6.32B
$8.94M 0.04%
158,428
+10,958
+7% +$533K
VISN
288
Vistance Networks Inc
VISN
$2.7B
$8.93M 0.04%
+319,921
New +$7.76M
CVBF icon
289
CVB Financial
CVBF
$4.02B
$8.8M 0.03%
+504,591
New +$7.96M
ESE icon
290
ESCO Technologies
ESE
$7.65B
$8.6M 0.03%
+220,518
New +$7.81M
EWT icon
291
iShares MSCI Taiwan ETF
EWT
$11.2B
$8.48M 0.03%
306,033
-36,500
-11% -$927K
CCP
292
DELISTED
Care Capital Properties, Inc.
CCP
$8.35M 0.03%
+311,044
New +$8.62M
OSIS icon
293
OSI Systems
OSIS
$3.84B
$8.26M 0.03%
126,129
+14,469
+13% +$958K
HW
294
DELISTED
Headwaters Inc
HW
$8.21M 0.03%
413,844
+28,116
+7% +$471K
MXL icon
295
MaxLinear
MXL
$6.26B
$8.13M 0.03%
439,595
-444,020
-50% -$7.04M
RELX icon
296
RELX
RELX
$61.7B
$8.13M 0.03%
432,562
-3,981
-0.9% -$70.1K
AROC icon
297
Archrock
AROC
$5.78B
$8.07M 0.03%
1,008,451
+401,925
+66% +$2.23M
EXTN
298
DELISTED
Exterran Corporation
EXTN
$7.69M 0.03%
497,672
-4,765
-0.9% -$72K
RGEN icon
299
Repligen
RGEN
$9.3B
$7.66M 0.03%
285,648
+124,755
+78% +$3.05M
PRTS icon
300
CarParts.com
PRTS
$51.3M
$7.54M 0.03%
294,531
+12,132
+4% +$336K
10 11
12
13 14

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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.