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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
+19.2%
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
$23.8B
AUM Growth
+$3.63B
Cap. Flow
+$288M
Cap. Flow %
1.21%
Top 10 Hldgs %
20.04%
Holding
441
New
37
Increased
142
Reduced
223
Closed
35

Sector Composition

Rank Sector Weight
1 Technology 17.21%
2 Consumer Discretionary 14.5%
3 Healthcare 14.2%
4 Industrials 13.82%
5 Financials 13.22%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
XLP icon
251
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.6B
$16.7M 0.07%
298,500
-100,100
-25% -$5.35M
NOAH
252
Noah Holdings
NOAH
$591M
$16.6M 0.07%
343,223
+32,969
+11% +$1.6M
XLU icon
253
State Street Utilities Select Sector SPDR ETF
XLU
$22.7B
$16.6M 0.07%
570,600
-212,000
-27% -$5.89M
LUV icon
254
Southwest Airlines
LUV
$22.3B
$16.6M 0.07%
318,967
+1,095
+0.3% +$57.8K
OCFC icon
255
OceanFirst Financial
OCFC
$1.84B
$16.4M 0.07%
683,704
-28,337
-4% -$688K
ANF icon
256
Abercrombie & Fitch
ANF
$5.24B
$16.4M 0.07%
598,310
-24,665
-4% -$553K
AROC icon
257
Archrock
AROC
$5.78B
$16.4M 0.07%
1,675,693
+221,775
+15% +$2.12M
WB icon
258
Weibo
WB
$1.93B
$16.3M 0.07%
262,523
-241,459
-48% -$15M
MCD icon
259
McDonald's
MCD
$194B
$16.2M 0.07%
85,310
-61,774
-42% -$11.2M
SHO icon
260
Sunstone Hotel Investors
SHO
$1.98B
$16.2M 0.07%
1,123,017
+12,758
+1% +$184K
SSD icon
261
Simpson Manufacturing
SSD
$8.19B
$16.2M 0.07%
272,827
+12,007
+5% +$710K
EWM icon
262
iShares MSCI Malaysia ETF
EWM
$331M
$15.8M 0.07%
526,860
-139,740
-21% -$4.26M
DAN icon
263
Dana Inc
DAN
$3.27B
$15.7M 0.07%
882,281
-1,223
-0.1% -$21.7K
CAG icon
264
Conagra Brands
CAG
$7.14B
$15.6M 0.07%
561,921
+45,326
+9% +$1.04M
AORT icon
265
Artivion
AORT
$1.38B
$15.6M 0.07%
533,110
+156,485
+42% +$4.46M
SMTC icon
266
Semtech
SMTC
$12.2B
$15.5M 0.07%
304,825
-62,443
-17% -$3.22M
CNC icon
267
Centene
CNC
$32.1B
$15.5M 0.07%
291,399
-10,821
-4% -$657K
CNO icon
268
CNO Financial Group
CNO
$5.05B
$15.4M 0.06%
952,925
+203,647
+27% +$3.45M
AAP icon
269
Advance Auto Parts
AAP
$3.19B
$15.4M 0.06%
+90,293
New +$14.6M
AIN icon
270
Albany International
AIN
$1.79B
$15.3M 0.06%
213,752
+16,784
+9% +$1.2M
WNS
271
DELISTED
WNS Holdings
WNS
$15M 0.06%
281,967
+22,237
+9% +$1.11M
WSFS icon
272
WSFS Financial
WSFS
$4.14B
$14.9M 0.06%
386,415
-17,299
-4% -$719K
WTS icon
273
Watts Water Technologies
WTS
$12.8B
$14.7M 0.06%
+181,499
New +$13.8M
LPSN icon
274
LivePerson
LPSN
$33.6M
$14.6M 0.06%
33,597
-10,636
-24% -$3.98M
SJI
275
DELISTED
South Jersey Industries, Inc.
SJI
$14.4M 0.06%
449,709
-143,250
-24% -$4.34M

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William Blair Investment Management's Q1 2019 Portfolio in Review

As of Q1 2019, William Blair Investment Management held 441 positions worth $23.8B, up 18% from $20.1B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

William Blair Investment Management's Q1 2019 filing shows 37 new, 142 increased, 223 reduced and 35 closed positions. Its largest new stake was Steris: 803,400 shares worth $103M. The largest sale was Six Flags Entertainment Corp., an estimated $151M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, up from 16% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • William Blair Investment Management's largest Q1 2019 buy was Steris: 803,400 shares worth $103M.
  • William Blair Investment Management added most to Check Point Software Technologies in Q1 2019, an estimated $181M increase.
  • William Blair Investment Management's biggest Q1 2019 reduction was WW International, cutting an estimated $59M.
  • William Blair Investment Management fully exited Six Flags Entertainment Corp. in Q1 2019, selling an estimated $151M.
  • William Blair Investment Management's ten largest holdings make up 20% of its $23.8B portfolio in Q1 2019.
  • William Blair Investment Management opened 37 new positions and closed 35 in Q1 2019.
  • William Blair Investment Management's portfolio value rose 18% quarter-over-quarter to $23.8B.

Based on William Blair Investment Management's 13F filing for Q1 2019, filed 10 May 2019.