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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
+8.82%
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
$27.9B
AUM Growth
+$434M
Cap. Flow
-$1.39B
Cap. Flow %
-4.97%
Top 10 Hldgs %
16.81%
Holding
485
New
38
Increased
170
Reduced
217
Closed
52

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$124M
2
WEX icon
WEX
WEX
+$108M
3
DXCM icon
DexCom
DXCM
+$100M
4
TSM icon
TSMC
TSM
+$99.8M
5
YELP icon
Yelp
YELP
+$93.8M

Top Sells

Rank Stock Value
1
ORLY icon
O'Reilly Automotive
ORLY
+$155M
2
SBNY
Signature Bank
SBNY
+$152M
3
ODFL icon
Old Dominion Freight Line
ODFL
+$132M
4
BABA icon
Alibaba
BABA
+$128M
5
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$119M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 15.32%
2 Industrials 13.97%
3 Financials 13.47%
4 Technology 12.68%
5 Healthcare 12.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CNO icon
226
CNO Financial Group
CNO
$5.12B
$22.7M 0.08%
972,932
-1,915
-0.2% -$42.8K
CNMD icon
227
CONMED
CNMD
$1.48B
$22.7M 0.08%
431,957
-865
-0.2% -$43.4K
PEB icon
228
Pebblebrook Hotel Trust
PEB
$2B
$22.4M 0.08%
619,644
-1,152
-0.2% -$38.3K
BPFH
229
DELISTED
Boston Private Financial Holdings, Inc.
BPFH
$22.3M 0.08%
1,350,351
-36,283
-3% -$548K
UMPQ
230
DELISTED
Umpqua Holdings Corp
UMPQ
$22.2M 0.08%
1,139,916
-30,522
-3% -$556K
CVCO icon
231
Cavco Industries
CVCO
$4.48B
$22.2M 0.08%
150,401
+12,676
+9% +$1.69M
AKR icon
232
Acadia Realty Trust
AKR
$2.78B
$22.2M 0.08%
774,569
-1,414
-0.2% -$40.9K
BLD
233
DELISTED
TopBuild
BLD
$22M 0.08%
337,307
+31,913
+10% +$1.8M
PLCE icon
234
Children's Place
PLCE
$58.3M
$21.9M 0.08%
185,050
-34,604
-16% -$3.72M
LHO
235
DELISTED
LaSalle Hotel Properties
LHO
$21.8M 0.08%
752,085
-1,415
-0.2% -$40.9K
SXI icon
236
Standex International
SXI
$3.98B
$21.5M 0.08%
202,516
-416
-0.2% -$39.8K
HOMB icon
237
Home BancShares
HOMB
$6.17B
$21.5M 0.08%
850,746
+778,133
+1,072% +$18.7M
HR
238
DELISTED
Healthcare Realty Trust Incorporated
HR
$21.3M 0.08%
657,865
-1,216
-0.2% -$40.2K
AROC icon
239
Archrock
AROC
$5.81B
$20.9M 0.07%
1,663,945
-3,481
-0.2% -$37.8K
KAI icon
240
Kadant
KAI
$3.94B
$20.8M 0.07%
211,245
-62,699
-23% -$5.32M
MGLN
241
DELISTED
Magellan Health Services, Inc.
MGLN
$20.7M 0.07%
240,178
-470
-0.2% -$37K
EME icon
242
Emcor
EME
$35.7B
$20.7M 0.07%
298,699
-64,475
-18% -$4.27M
EDR
243
DELISTED
Education Realty Trust Inc
EDR
$20.6M 0.07%
574,596
-62,548
-10% -$2.4M
BITA
244
DELISTED
Bitauto Holdings Limited
BITA
$20.6M 0.07%
+460,500
New +$16.6M
STL
245
DELISTED
Sterling Bancorp
STL
$20.5M 0.07%
831,044
-1,110
-0.1% -$25.3K
LAUR icon
246
Laureate Education
LAUR
$5.13B
$20.4M 0.07%
1,405,129
+137,840
+11% +$2.16M
AAT
247
American Assets Trust
AAT
$1.38B
$20.3M 0.07%
511,148
-989
-0.2% -$39.7K
BMY icon
248
Bristol-Myers Squibb
BMY
$132B
$20.3M 0.07%
318,880
-4,400
-1% -$257K
DAR icon
249
Darling Ingredients
DAR
$9.99B
$20.2M 0.07%
1,153,621
-2,421
-0.2% -$41K
CHDN icon
250
Churchill Downs
CHDN
$6.02B
$20.1M 0.07%
583,500
-49,536
-8% -$1.59M
8 9
10
11 12

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William Blair Investment Management's Q3 2017 Portfolio in Review

As of Q3 2017, William Blair Investment Management held 485 positions worth $27.9B, up 1.6% from $27.5B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $1.39B in Q3 2017, closing 52 positions and reducing 217 holdings. Its most notable exit was Amedisys, an estimated $91.9M position sold in full.

By sector, the portfolio is most concentrated in Consumer Discretionary at 15% of assets, down from 16% a quarter earlier, followed by Industrials and Financials.

Against the trend, William Blair Investment Management opened a new position in Rogers Communications worth $125M.

  • William Blair Investment Management's largest Q3 2017 buy was Rogers Communications: 2,429,600 shares worth $125M.
  • William Blair Investment Management added most to TSMC in Q3 2017, an estimated $99.8M increase.
  • William Blair Investment Management's biggest Q3 2017 reduction was O'Reilly Automotive, cutting an estimated $155M.
  • William Blair Investment Management fully exited Amedisys in Q3 2017, selling an estimated $91.9M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $27.9B portfolio in Q3 2017.
  • William Blair Investment Management opened 38 new positions and closed 52 in Q3 2017.
  • William Blair Investment Management's portfolio value rose 1.6% quarter-over-quarter to $27.9B.

Based on William Blair Investment Management's 13F filing for Q3 2017, filed 13 Nov 2017.